Question

if a =3 Cos2theta ; and b = 3Sin2theta +1; then find a+b​

Answer 1

Answer:

X= a y= b

Step-by-step explanation:

Given, x=2sin

2

θ,y=2cos

2

θ+1

To find: (x+y)

x+y=2sin

2

θ+2cos

2

θ+1

=2(sin

2

θ+cos

2

θ)+1 .....(As sin

2

θ+cos

2

θ=1)

=2+1

=3