evaluate : sec theta cosec (90°- theta) - tan theta cot (90°-theta) + sin square 55° + sin square 35°/ tan 10° tan 20° tan 60° tan 70° tan 80°
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Step-by-step explanation:
tan(90-theta)=cot theta so they will cancel each other
secant ^2 theta -tan^2 theta=1
sin^2 theta +cos^2 theta =1
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