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[" Ex.13.Are wifre for "],[(sin theta+co...

[" Ex.13.Are wifre for "],[(sin theta+cosec theta)^(2)+(cos theta+sec theta)^(2)=7+tan^(2)theta+cot^(2)theta]

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Prove that (sin theta + "cosec" theta)^(2)+(cos theta + sec theta)^(2)=(7+ tan^(2) theta + cot^(2) theta).

(sec theta+csc theta)^(2)-(tan theta+cot theta)^(2)=

(sin theta" cosec "theta tan theta cot theta)/(sin^(2)theta+cos^(2)theta)

Prove that (sin theta- "cosec" theta )(cos theta- sec theta )=(1)/(tan theta + cot theta).

Prove that (sin theta- "cosec" theta )(cos theta- sec theta )=(1)/(tan theta + cot theta).

Prove that (sin theta- "cosec" theta )(cos theta- sec theta )=(1)/(tan theta + cot theta).

(cosec theta+sin theta)(cosec theta-sin theta)=cot^(2)theta+cos^(2)theta

prove that: (tan theta-cot theta)^(2)+2=sec^(2) theta+ cosec^(2) theta-2

" (2.) "tan theta+cot theta=sec theta cosec theta