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[" 7.सिद्ध कीजिए कि "],[2sec^(2)A-sec^(4...

[" 7.सिद्ध कीजिए कि "],[2sec^(2)A-sec^(4)A-2cosec^(2)A+cosec^(4)A],[=cot^(4)A-tan^(4)A.]

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Prove that: 2sec^(2)A-sec^(4)A-2"cosec"^(2)A+"cosec"^(4)A=cot^(4)A-tan^(4)A

Prove that: 2sec^(2)A-sec^(4)A-2"cosec"^(2)A+"cosec"^(4)A=cot^(4)A-tan^(4)A

If 2sec^(2) A - sec^(4) A - 2cosec^(2) A + cosec^(4) A = 15//4 , then tan A is equal to

sec^(2)(tan^(-1)4)+cosec^(2)(cot^(-1)3) =

2sec^(2)alpha-sec^(4)alpha-2csc^(2)alpha+csc^(4)alpha=

2sec^2theta-sec^4theta-2cosec^2theta+cosec^4theta=cot^4theta-tan^4theta .

sec^(2)(Tan^(-1)2)+cosec^(2)(Cot^(-1)3)=

sec^(2)(tan^(-1)(2))+cosec^(2)(cot^(-1)(2))=

sec^(2)(tan^(-1)2) + "cosec"^(2)(cot^(-1)3)=

(cot^(2)A*sec A)/(cos^(2)A*sin^(2)A)=sec A*cosec^(4)A