Question

if tan A = √2 -1 show that sinA.cosA=√2/4​

Answer 1

Answer:

PLEASE CHECK YOUR QUESTION ONCE! IT'S √2/3 NOT √2/4

Step-by-step explanation:

PLEASE MARK MY ANSWER AS BRAINLIEST

Tan A = √2 -1  = P/B (P=√2k B= k)

As p² + b² =  h²

We get h= √3 k

SinA.CosA = p/h x b/h = √2k/√3k x k/√3k = √2/3

[SinA= perp/hypo ,CosA=base/hypo]