Question

(sec² Q-1)(1-cosec²theta )= -1​

Answer 1

Step-by-step explanation:

this is the answer for your question

Answer 2

Step-by-step explanation:

Here let Q be equals to Thetha.

Remember THESE FORMULA : [1 + tan²Q = sec²Q] and [ 1 + cot²Q = cosec²Q]

(sec²Q - 1) (1 - cosec²Q) = -1

Now LHS = (sec²Q - 1) (1 - cosec²Q) -------------(1)

(tan²Q) (-cot²Q)

(tan²Q × -1 / tan²Q)

Now tan²Q will cancel out and we will get ,

-1

Hence we get LHS = -1

AND LHS = RHS

HENCE PROVED

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