Question

यदि tan A= 2-1 हो, तो sin A.coS A = ?​

Answer 1

Answer:

1/2

Step-by-step explanation:

wkt

tan A=sinA/cosA

given tanA=2-1=1=tan45

which means A=45

therefore sinA=1/√2

cosA=1/√2

therefore

SinA.cosA=1/√2×1/√2=1/2