1.

Prove the following results:(i) tan-117+tan-1113=tan-129(ii) sin-11213+cos-145+tan-16316=π(iii) tan-114+tan-129=sin-115

Answer» Prove the following results:



(i)
tan-117+tan-1113=tan-129

(ii) sin-11213+cos-145+tan-16316=π

(iii) tan-114+tan-129=sin-115


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