Bengali
English
Hindi
Telugu
Marathi

Question

Download Solution PDF

2sin2θ + 2cos2θ এর সর্বোচ্চ মান কত হবে? 

  1. 1
  2. 2
  3. -2
  4. 0

Answer (Detailed Solution Below)

Option 2 : 2
Free Tests
View all Free tests >
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins
Start Now

Detailed Solution

Download Solution PDF

প্রদত্ত:

2sin2θ + 2cos2θ

ব্যবহৃত অভেদাবলি:

sin2θ + cos2θ = 1

গণনা:

⇒ 2(sin2θ + cos2θ)

আমরা জানি যে (sin2θ + cos2θ = 1)

⇒ 2 × 1 = 2

∴ 2sin2θ + 2cos2θ রাশির মান হল 2

Download Solution PDF
Latest RRB Group D Updates

Last updated on Jul 18, 2025

-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025. 

-> The RRB Group D Exam Date will be announced on the official website. It is expected that the Group D Exam will be conducted in August-September 2025. 

-> The RRB Group D Admit Card 2025 will be released 4 days before the exam date.

-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.

-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a NAC granted by the NCVT.

-> Check the latest RRB Group D Syllabus 2025, along with Exam Pattern.

-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.

-> Prepare for the exam with RRB Group D Previous Year Papers.

Exams Tests Super Practice

More Max and Min Value of Trigonometric Functions Questions

Q1.The function sinp θ cosq θ has maximum value, when
Q2.What is the minimum value of 6 - 4 sin θ, 0 ≤ θ ≤ \(\frac{\pi}{2}\)
Q3.Maximum value of (2 sin θ + 3 cos θ) is
Q4.If y = cos2 x + sec2 x, where 0 ≤ x < \(\frac{π}{2}\), then which one of the following is correct?
Q5.What is the minimum value of sin4 θ + cos4 θ - 2sin2 θ cos2θ?
Q6.The expression (tan θ + cot θ) (sec θ + tan θ) (1 – sin θ), 0° < θ < 90°, is equal to:
Q7.The value of \(\rm \frac{3(cosec^2 \,26^\circ-tan^2\,64^\circ)+(cot^2\,42^\circ-sec^2\,48^\circ)}{cot(22^\circ-\theta)-cosec^2(62^\circ+\theta)-tan(\theta+68^\circ)+tan^2(28^\circ-\theta)}\) is:
Q8.If x is a real quantity, what is the minimum value of (25 cos2 x + 9 sec2 x)?
Q9.1 + 2sin 2 θ cos 2 θ - sin 4 θ - cos 4 θ যেখানে 0° < θ < 90° এর সর্বোচ্চ মান কত?
Q10.What is the ‘minimum value of cos3θ + sec3θ  where 0° ≤ θ < 90° ?

More Trigonometry Questions

Q1.A ladder is resting on the ground with the top end in contact with the top of a wall of a height of 12 metres. If the length of the ladder is 13 metres, at what distance from the wall is the base of the ladder on the ground?
Q2.Cos0°. Cos1°. Cos2°, Cos3° ......... Cos90° =? 
Q3.If sin 2A = 2 sin A, then A = ?
Q4.If Sin \(A=\frac{3}{5}\) then find value of Cos A? 
Q5.Sin π = ?
Q6.Cosec2θ - Cot2θ = ?
Q7.If cot θ + cosecθ = 5, θ being an acute angle, then the value of 13 cos θ is:
Q8.An aeroplane at an altitude of 3000 m observes the angles of depression of opposite points on the two banks of a river to be 45 and 60 respectively. Find the width of the river in metre. 
Q9.An aeroplane at an altitude of 3000 m observes the angles of depression of opposite points on the two banks of a river to be 45 and 60 respectively. Find the width of the river in metre.
Q10.1 + sec2 46° - cot2 44° =

RRB Group D Important Links

Admit CardExam DateSyllabusPrevious Year PapersApply OnlineApplication Status

More Quantitative Aptitude Questions

Q1.Perimeter of a rectangular field is equal to the perimeter of a triangular field whose sides are in the ratio 3:2:4 respectively. lf area of rectangular field is 500 m2 and sides are in the ratio 5:4 respectively, then calculate the longer side of the triangular field.
Q2.A cistern has an inlet pipe and an outlet pipe. Inlet pipe can fill three-fourth of the cistern in 24 minutes while outlet pipe can empty the one-third filled cistern in 16 minutes. If both the pipes are opened together, then the cistern will be completely filled in-
Q3.In a family, three sons were born for every 3 years one after the other. If the ratio of present ages of father and the eldest son is 15:7 and the average of the present ages of the 3 sons is 18 years. What will be the ratio of the ages of the father and the youngest son after 5 years?
Q4.Train A of length 80m while moving crosses a pole in 16 seconds. lf it is known that the lengths of train B and train A is in the ratio of 3:1, then how long would it take train B to cross a platform which is half the length of train A if the speed of train B is same as that of train A?
Q5.Can A and Can B contain a mixture of soda and water in the ratio of 5 : 3 and 7 : 2 respectively If soda and water are taken out in the ratio of P : Q from can A and B respectively to form a new mixture in which the ratio of soda and water is 12 : 5 respectively, then find the value Of P:Q?
Q6.A boat can covers a certain distance in upstream and same distance in downstream in total of 7 hours 48 minutes, If upstream speed of the boat is 62.5%. of downstream speed of the boat and speed of the stream is 3 km/h, what is the total distance covered by the boat?
Q7.M and R went for shopping and bought two sarees each at different cost. Cost price of saree bought by R is Rs.250 more than the cost price of saree bought by M. Shopkeeper earned a profit of 20% on selling both the sarees together to R and M which he bought them at total Rs.6000. At what cost did M buy saree?
Q8.There are three numbers m, n, and p, such that sum of m and n is 144, sum of thrice of n and five times of p is 464, and sum of p and m is 160, then what is the value of p?
Q9.While calculating average marks of 60 students, the two digits of original marks of a student are written reversed and thereby average of marks is increased by 0.6 Find the difference between the two digits of marks of the student?  
Q10.Simple interest received on a certain sum at a rate of simple interest of 5% for 2 years is Rs.780. If the rate of interest remains same, what will be the total amount at the time of withdrawal at the end of 5 years.  
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
support@testbook.com
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Hot Links： teen patti download teen patti joy official teen patti casino apk teen patti mastar