Question

Please solve the above question with perfect explaination...
And yes no USELESS ANSWERS​

Answer 1

Step-by-step explanation:

Formulas:

1. cos(90 - A) = sinA

2. sin(90 - A) = cosA

3. tan(90 - A) = cotA

Equation is,

cos(90 - A) * sin(90 - A)/tan(90 - A)

=> (sinA * cosA)/cotA

=> (sinA * cosA)/(cosA/sinA)

=> (sinA * cosA * sinA)/cosA

=> sinA * sinA

=> sin^2A

#Hope my answer helped you!