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TRIGONOMETRY CONTINUEDProve the identities: tanθsinθ+cosθ=secθ2tanx1+tan2x=sin2xsin θ1+cosθ+cosθsinθ=cscθsecθ+tanθ=cosθ1-sinθ In oblique triangle ABC, A =34°, B=68°, and a=4.8. Find b to the nearest tenth. Find all values of x such thatsin2x=sinx and 0≤x≤2π. If the rectangular coordinates of a point are (1,-1), find the polar coordinates of the point. Sketch the graph of the function y=1+sin2x without a calculator. Perform the indicated operation: 5(cos15°+isin15°)?10(cos5°+isin5°) ................
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