Question

what sign has sin A+cos A if A=1)140

2)-1125​

Answer 1

cos A - sin A is the format

cos A = positive sign = 140

sin A = negative sign =-1125

Answer 2

I have done the A part you can do the B part on ur own.

Sin A=Positive

Cos A =Negative

Bcoz 140 degree lies on second quadrant where on sin is positive.