Question

if sin teeta +cos teeta =root2sin(90-teeta),then find cos teeta.​

Answer 1

Answer:

Step-by-step explanation:

θ=Theeta,

Let  θ be A ,

sinA + cosA root 2 cos (90-A) ,

SinA +cosA= root 2 sinA ,

CosA = root 2sinA - sinA ,

CosA = sinA (root - 1) ,

CosA/sinA =(root - 2) ,

So, cotA= root 2 -1 ,

Hope it helps.