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kellzz

  • 3 years ago

verify 1+sec^2xsin^2x=sec^2x

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  1. jishan
    • 3 years ago
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    |dw:1354999193935:dw|

  2. campbell_st
    • 3 years ago
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    use the substitution sin^2(x) = 1 - cos^2(x) and you also need to know sec^2(x) = 1/cos^2(x) so the left hand side becomes 1 + 1/cos^2(x)(1 - cos^2(x)) distribute and simplify for your answer

  3. jishan
    • 3 years ago
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    r u understand sister.

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