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Dini
Questions (3)
Prove: sin3x-sinx/cos3x-cosx=-cot2
1 answer
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Graph the function f(x)=-1/2sin2x+1 on the interval [-2pi, 2pi]
0 answers
526 views
Prove cos4x = 8 cos^4x-8 cos^2x+1
1 answer
473 views
