Question

Express sec50°+Cot78°.In terms of t- ratio of angles between 0°and 45°

Answer 1

Simple Ques. wants sec50+cot78 to be written in the form such that angles b/w 0 and 45 come only

so, sec50+ cot78= sec(90-40) + cot (90-12)
                           = cosec40 + tan12

I hope it'll help.

Answer 2

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