cot (90-0) sin (180+ o) sec (360-0)
tan (180°+0 ) sec (-o) cot (9079
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Solution: `L.H.S. = (cos(90^@+theta)sec(-theta)tan(180^@-theta))/(sec(360^@-theta)sin(180^@+theta)cot(90^@-theta))` `= ((-sintheta)sectheta(-tantheta))/(secthe ... More
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