Question

If cos theta = 2/5 then find the value of 2 tan theta +cot theta/3 sec theta + 4 cosec theta

Answer 1

Step-by-step explanation:

cos theta=2/5

sin theta=√21/5

tan theta=√21/2

cot theta=2/√21

sec theta=5/2

cosec theta=5/√21

2×√21/2+2/√21/3×5/2+4×5/√21

√21+2/√21/15/2+20/√21

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