Question

(a) Prove that
550 ulny od
cosec (90° +0) + cot(450° +0) tan (180° +0) + sec(180°--0)
+
= 2.
cosec (90° - 0)+tan (180°-O) tan (360° + 0)- sec(-0)
(6) Prove that cos 0 + sin (270° + o) - sin (270° - 0) + cos (180° + ) = 0.
(c) Prove that cosec (270° - 0) cosec (270° + 0)+cot (270° -6) cot (270° +9)=1.​

Answer 1

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