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Prove -: (1+cot A- cosec A)(1+tan …

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Prove -: (1+cot A- cosec A)(1+tan A+ sec A)=2.

    • Posted by Aashna Singh 4 years, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Gautam Sinha 4 years, 8 months ago

    (1+cos¢\sin¢-1/sin¢) (1+sin¢/cos¢+1/cos¢) =sin²¢+cos²+2sincos¢-1÷cos¢sin¢ =1+2sincos¢-1÷sin¢cos¢ =2

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