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5. (ख) सिद्ध कीजिए- tan A -+- cot -=1+ s...

5. (ख) सिद्ध कीजिए- tan A -+- cot -=1+ sec A cosec A 1-tan A 1-cot A

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(tan A+cot A)=(sec A*csc A)

(1+tan A+sec A)(1+cot A-cosec A)=

sin A(1+tan A)+cos A(1+cot A)=sec A+cosec A

Prove the identity : tan A + cot A = sec A . cosec A

(1 + cot A — cosec A) (1 + tan A + sec A) = 2 .

7. (sin A+cos A)(cot A+tan A)=sec A+cosec A

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

Prove that: (cosec A-sin A)(sec A-cos A)=(1)/(tan A+cot A)

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