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Smallest positive x satisfying the equat...

Smallest positive x satisfying the equation `sin3x + 3cosx= 2 sin2x(sinx + cosx)`, is-

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The smallest positive x satisfying the equation (log)_(cosx)sinx+(log)_(sinx)cosx=2 is

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The smallest positive x satisfying the equation (log)_(cosx)sinx+(log)_(sinx)cosx=2 is pi/2 (b) pi/3 (c) pi/4 (d) pi/6

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cosx + sinx = cos2x + sin2x

Show that, sin3x + cos3x = (cosx-sinx)(1+4sinx cosx)

Show that, sin3x + cos3x = (cosx-sinx)(1+4sinx cosx)

sinx + cosx = (cos2x)/(1-sin2x)

cosx - sin3x = cos2x