Trigonometry Answers

Perform the indicated operation.

3y^2+12/3y^2-15y divided by y^4-16/y^2-3y-10

the values that would be excluded from the domain are?

if tanθ+secθ=x, prove that sinθ=(X^2-1)(x^2+1)

The angle of depression from the top of a building to a point on the ground which is 47feet, from the base of the building is 38degree. Find the height of the building ?

The roots of the equation ax squared plus 4x equals -2 are real, rational and equal when a has a value of:

whats the period of a wave with a frequency 750 hz

What is sin^2(5x)+cos^2(5x) ? is it 1 or 5 or something else?

solve x: sin (x+30) = - 2 cos x

cos20 degre*cos40*cos60*

proof identity (1-tanA)/(1+tanA)=(cos2A)/(1+sin2A)

How do i prove tan(theta)+cot(theta)/sec(theta)csc(theta)=1?