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What is the value of/का मान क्या है? 1/(...

What is the value of/का मान क्या है? `1/(sin^4(90- theta))+1/([cos^2(90-theta)]-1)` ?

A

`tan^2 theta sec^2 theta`

B

`sec^4 theta`

C

`tan^4 theta`

D

`tan^2 theta sin^2 theta`

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