If tan x =1/2, tan y = 1/3, what is the value of tan (x + y)?
A). 1
B). 2
C). 1/2
D). 1/6
1. If $cos x + cos^{2}x$ = 1, then $sin^{8}x + 2 sin^{6}x + sin^{4}x$ is equal to
2. $\left(\frac{3\pi}{5}\right)$ radians is equal to
3. What is the value of (2/√3 + tan45°) ?
5. What is the simplified value of$ (cosec^{4} A - cot^{2} A) - (cot^{4} A + cosec^{2} A)$ ?
6. If cos -300° = x, then the value of x is
7. Find the value of (sin θ + cos θ tanθ)/cos θ
8. The value of 4cot2 45° - sec230° is
10. If tan θ - cot θ = 0, find the value of √6(4sin θ + 2cos θ),