Question

Givenn that A+B = 90 show that
√cosAcosecB - cosAsinB = SinA​

Answer 1

Answer:

Step-by-step explanation:

Given- a + b = 90 degree

LHS

root CosA cosec(90-A) - cosAsin(90-A)

root CosA secA - cosAcosA

root 1 - cos^2A

root Sin^2A

SinA = RHS

hence proved