The Value of (sin38˚)/(cos52˚) + (cos12˚)/(sin78˚) - 4cos²60˚ is

If (cos A - sin A) = √2 cos (90° - A), then find the value of cot A.

Find the value of the given expression.

2 × (sec 60° – sin 30°)

What is the simplified value of the given expression?

3(sin² 30° + sin² 60°) + 6sin 45° - (3sec 60° + cot 45°)

If sec a + tan a = 2, find the value of sin a. 

If cos θ + sec θ = √5, then the value of cos³ θ+ sec³ θ is:

if x sin 45 ˚  = y cosec 30 ˚   then find the value of 

If cos θ + sin θ = m, sec θ + cosec θ = n then n(m ² – 1) is equal to?