In a right triangle for an acute angle x, find sinx. It is given that tanx = 5.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. .
Given, tan x = 5 and,
tan x = P/B
where, Perpendicular = P, Hypotenuse = H, Base = B
⇒ P/B = 5
⇒ P = 5, B = 1
And, sin x = P/H
Using Pythagoras Theorem, we get
⇒ H2 = P2 + B2
⇒ H2 = 52 + 12 = 26
⇒ H =
⇒ sinx = P/H =