Suggested: (cosx+sinx)^2 - cos2x/(cosx+sinx)^2 - integration of cos2x/(cosx+sinx)^2 - cosx+sinx/cosx-sinx-cosx-sinx/cosx+sinx=2tan2x - sin5x-2sin3x+sinx/cos5x-cosx=tanx - (cosx+cosy)^2+(sinx-siny)^2=4cos^2x+y)/2 - find sinx/2 cosx/2 and tan x/2 - if tanx=3/4 find sinx/2 and cosx/2 - sinx-siny/cosx+cosy=tan x-y/2 - (cosx-cosy)^2+(sinx-siny)^2=4sin^2x-y/2) - 3(sinx-cosx)^4+6(sin x+cos)^2x+4(sin^6x+cos^6x) - integral 0 to pi/2 x/sinx+cosx - cosx/1-sinx=tan(pi/4+x/2) - prove that sinx-siny/cosx+cosy=tan x-y/2 - (cosx+sinx)^2 Browse related:
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