Question

Prove cosec theta-2sin cube theta/2cos cube theta-cos theta=tan theta

Answer 1

cosec90°-2sin^3 90°/2 cos cube 90°minus Cos 90°is equals to tan 90 degrees

1 -2 into 1 cube / 0 - 0 is equals to 1/0

minus one by zero is equals to 1/0

(anything by zero is not defined)

so, not defined = not defined

hence proved.