Show that 1+cot^2(x)=cosec^2(x)
Need to remember that:sin2(x)+cos2(x)=1 (eq.1)Divide the whole eq.1 by sin2(x)to get:sin2(x)/sin2x+cos2(x)/sin2(x)=1 /sin2x Which is the same as:1+cot2x=cosec2x
TD
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