Question

2. If cos A + cos'A = 1, then the value of sin'A+ sin A is​

Answer 1

Answer:

Cos A +CosA =1

2Cos A=1

CosA =1/2

Cos a= cos 60

a= 60

Sin A +Sin A

sin 60 + sin 60

underoot 3/2+underiot 3/2

2underoot3/2

underrroot 3