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Please help me idk how to solve it. Simplify: (sin Θ − cos Θ)2 − (sin Θ + cos Θ)2 −4sin(Θ)cos(Θ) 2 sin2 Θ cos2 Θ
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Please help me idk how to solve it. Simplify: (sin Θ − cos Θ)2 − (sin Θ + cos Θ)2 −4sin(Θ)cos(Θ) 2 sin2 Θ cos2 Θ
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May 20, 2018
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Please help me idk how to solve it.
Simplify: (sin Θ − cos Θ)2 − (sin Θ + cos Θ)2
−4sin(Θ)cos(Θ)
2
sin2 Θ
cos2 Θ
Mathematics
high-school
Rkosegi
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sin^2Ф+cos^2Ф-2sinФcosФ-(sin^2Ф+cos^2Ф+2sinФcosФ)
1-2sinФcosФ-1-2sinФcosФ
we know sin^2Ф+cos^2Ф=1
-4sinФcosФ
answer is A
Shab
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May 26, 2018
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Shab
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