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Prove the trigonometric identities: 1/(s...

Prove the trigonometric identities: `1/(secA+tanA)-1/(cosA)=1/(cosA)-1/(secA-tanA)`

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Prove that 1/(secA-tanA)-1/(cosA)=1/cosA-1/(secA-tanA) .

secA(1-sinA)(secA+tanA)=1

Knowledge Check

  • cosA(secA-cosA)(cotA+tanA)=?

    A
    `tanA`
    B
    `SecA`
    C
    `sinA`
    D
    `cotA`
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