Question
Download Solution PDFIn a right triangle for an acute angle x, if sin x = \(\frac{3}{7}\), then find the value of cosx.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
In a right triangle for an acute angle x, if sin x = \(\frac{3}{7}\)
Calculation:
So perpendicular is 3 unit and hypotenuse is 7 units
So base is, √72 - 32 = √40 units
⇒ 2√10 units
As we know, cosx = Base / hypotenuse
So, cosx= \(\frac{2(\sqrt{10})}{7}\)
The correct option is 4
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