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Solve the equation tan^4x+tan^4y+2cot^2x...

Solve the equation `tan^4x+tan^4y+2cot^2xcot^2y=3+sin^2(x+y)` for the values of `x and y dot`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  3. Solve the equation tan^4x+tan^4y+2cot^2xcot^2y=3+sin^2(x+y) for the va...

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  11. Prove that 2sin2^0+4sin4^0+6"sin"6^0+.......+180sin180^0=90cot1^0dot

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  12. If A+B+C=180^@, then prove thatcos^2 A + cos^2 B +cos^2 C=1-2cosA cosB...

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  13. Prove that in triangle A B C ,cos^2A+cos^2B-cos^2C=1-2sinAsinBcosCdot

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  18. If cot^2Acot^2B=3, then the value of (2-cos2A)(2-cos2B) is

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