egoodrich1337
egoodrich1337
09-05-2017
Mathematics
contestada
Will someone help me with problem 21?
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Аноним
Аноним
10-05-2017
sin^(1/2) x cos x - sin^(5/2) cos x
= sin^(1/2) x cos x - sin(1/2)x sin^2 x cos x
factoring we get:
cos x sin^(1/2) x ( 1 - sin^2 x)
Now 1 - sin^2 x = cos^2 x so we have
cos x sin^(1/2) x * cos^2 x
= cos^3 x sqrt sin x
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