Question

if sin A =cos45*then find the value of A is​

Answer 1

Answer:

SinA=cos45

SinA=Sin(90-45)

SinA=Sin45

A=45*

Answer 2

Answer:

From tables:-

$sin 45°= \frac{1}{ \sqrt{2} }$

$cos 45°= \frac{1}{ \sqrt{2} }$

SOLUTION:-

sin A=cos 45

$sin A= \frac{1}{ \sqrt{2} }$

sin A=sin 45°

A=45°

Hence,

Value of A=45