Question

If 2cos-1=0 then find tan³=?
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Answer 1

Answer:

3√3

Step-by-step explanation:

2 CosA = 1, so cosA = 1/2 and by the formula,

sin^2 A + cos^2 A = 1, sinA = √3/2.

now tanA = sinA / cos A = √3.

so, tan^3 A = 3 √3.

Answer 2

Answer:

3√3

Step-by-step explanation:

cos=1/2

sec=2

sec²=4

since tan²+1=sec²

tan²=3

tan=√3

tan^3=3*√3