If A lies in II quadrant and 3 tan +4=0, then value of 2 cot A-5 Cos A = Sin A equal to
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3 tan A+4=0
tan A=-4/3.
working with a 3-4-5 reference right triangle in 2a
cot A=-3/4
cos A=-3/5
sin A=4/5
2cot A(-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
tan A=-4/3.
working with a 3-4-5 reference right triangle in 2a
cot A=-3/4
cos A=-3/5
sin A=4/5
2cot A(-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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