Trig Problems

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Trig Pro

Set -pi/2 <= x <= pi x = arcsin[sin(5pi/3)] = _______pi x = arcsin[sin(7pi/4)] = _______pi x = arccos[cos(-5pi/6)] = ______pi x = arccos[cos(3pi/2)] = _______pi x = arccos[cos(3pi/4)] = ______pi x = arctan[cos(3pi/2)] = ______pi x = arcsin[sin(7pi/6)] = _____pi Write as a multiple of pi. pi = 3.14159... x has to be in the exact range: -pi/2 <= x <= pi

Trigonometry review - 2 Questions

(See attached file for full problem descriptions) --- 2. Displacement of a body is given by... 3. Alternating currents i1 and i2 flowing into... ---

Solve for x.

Solve for x. In each equation below, x has four roots. (a) (sin x)^2 = 1/36 (b) (cos x)^2 = 1/25 Note: Do not use caculator. The results should not contain floating points.

Use Identities to Simplify (Trig)

[sin(x)^4 - sin(x)^2]/[sec(x)]= I tried simplifying, but I get cos(x)^5 - cos(x)^3 and this isn't right.