1. | Is Sin^2 x + Sin^2 ( x + y ) + 2SinxCosxSin ( x + y ) = Sin^2 y ? |
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2. | Is 2Sec^2 xCos^2 x = 2 an identity? |
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3. | True or false, Tanx + TanySecx = Tan ( x + y ) ? Cosx + TanySinx |
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4. | Which of the following is not an identity with Cos2x? |
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5. | What is Cos2x + Sec2x |
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6. | Is Sec2x = 1 an identity? ( 1 - Sinx )( 1 + Sinx) |
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7. | Which of these is the identity of Sin 2x? |
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8. | Is Sinx + Cosx = 1 an identity? |
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9. | What is Sinx + Cosx + 1 ? TanxCotx |
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10. | What is ( Sinx + Cosy )^2 ? |
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