Question

AB.
If 7 sin? +3 cos? 0 = 4, then find
sec + cosec O.​

Answer 1

Answer:

the comment section plz if you

Answer 2

Answer:

here is your answer

Step-by-step explanation:

7sin

2

θ+3cos

2

θ=4

⇒7sin

2

θ+3(1−sin

2

θ)=4

⇒7sin

2

θ+3−3sin

2

θ=4

⇒4sin

2

θ=1

⇒sin

2

θ=

4

1

⇒sinθ=

2

1

⇒sinθ=sin30

∘

⇒θ=30

∘

L.H.S =secθ+cosecθ

=sec30

∘

+cosec30

∘

=

3

2+2

= R.H.S

Hence proved.