tan(270+A)=-cotA solve to prove it
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Tan( 270 + A)
(in forth quadrant tan changes to cot)
In 4th quadrant tan is negative
So - cot A
(in forth quadrant tan changes to cot)
In 4th quadrant tan is negative
So - cot A
Answered by
1
Heya,
Here is your answer to the question.
270 is in negative y axis,which means change. Also it comes in 4th quadrant with negative sign.
Thus we can say that Tan (270+A)=-cot A.
Here is your answer to the question.
270 is in negative y axis,which means change. Also it comes in 4th quadrant with negative sign.
Thus we can say that Tan (270+A)=-cot A.
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