Question

the value of theta in 5 sin² theta - cos² theta = 2 is​

Answer 1

Answer:

5sin

2

θ+cos

2

θ=2⇒5sin

2

θ+(1−sin

2

θ)=2[∵sin

2

θ+cos

2

θ=1]

⇒5sin

2

θ+1−sin

2

θ=2⇒4sin

2

θ=2−1⇒4sin

2

θ=1⇒sin

2

θ=

4

1

⇒sinθ=±

2

1

Answer 2

Answer:

hlo veere sat shri akal

kiwe tuc

Step-by-step explanation:

5sin

2

θ+cos

2

θ=2⇒5sin

2

θ+(1−sin

2

θ)=2[∵sin

2

θ+cos

2

θ=1]

⇒5sin

2

θ+1−sin

2

θ=2⇒4sin

2

θ=2−1⇒4sin

2

θ=1⇒sin

2

θ=

4

1

⇒sinθ=±

2

1