Question

Pls answer me as soon as possible and I will mark your answer as Brainiest if you provide a proper answer​

Answer 1

Answer:

+

3

sin250

∘

1

=

cos(270

o

+20

∘

)

1

+

3

sin(270

o

−20

∘

)

1

=

sin20

∘

1

−

3

cos20

∘

1

=

3

cos20

∘

sin20

∘

3

cos20

∘

−sin20

∘

=

2

3

sin40

∘

2(

2

3

cos20

∘

−

2

1

sin20

∘

)

=

2

3

sin40

∘

2sin(60

∘

−20

∘

)

=

3

4

=2.31