Question

if 1+sin2a = 3sina Cosa, then value of Cota are​

Answer 1

Answer:

please mark as brain list

Answer 2

Answer:

sin^2 a+cos^2 a+2sina.cosa=3sina.cosa

sin^2A+cos^S=sinA.cosA

(sinA/cos A)+(cosA/sin A)=1

(1/cotA)+cot A=1

1+cot^2A=cot A

cot^2A-cotA+1=0

It is a quadratic equation.

Let cotA=y

y^2-y+1=0

y^2-2(1/2)y+1/4-1/4+1=0

(y-1/2)^2+3/4=0

you will not get any real solution