Question

sinx+cosx=1prove that sinx-cosx=+-1​

Answer 1

Step-by-step explanation:

agoSin x + cos x =1Sin x=1-cos x2sin(x/2)cos(x/2)=2sin^2(x/2)Cos(x/2)=sin(x/2)1=tan(x/2)Tan45=tan(x/2)X/2=45X=90Sin (90) -cos(90)= 1-0= 11=√1Hence