3tan+4=0 find 2cot-5cos+3sin
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Answer:
Step-by-step explanation:
3tanA+4=0
tanA=-4/3
Pythagorean triplet(3,4,5)
cotA=-3/4
cosA=-3/5
sinA=4/5
Therefor-:
2 cot A-5 cos A+sin A
=2(-3/4)-5(-3/5)+4/5
=-6/4+3+4/5
=-3/2+3+4/5
=-15/10+30/10+8/10
=23/10
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