Q) if is in the first quadrant ; in the first quadrants.
Find a) b) c)the quadrant containing
Please answer in Steps..
Thank you
Hello ekledes
Your solution is all right, excpet for c part.
is in first qurdrant, but niot because , but because
Sine function is positive in both first and second quadrant. Its cos function which is negative in second quadrant. So here deciding factor is cos value not sin value