Question

pls answer this one asap!!!

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Answer 1

Answer:

pic is not clear

Step-by-step explanation:

sin(x−20

∘

)=cos(3x−10

∘

)

⇒sin(x−20

∘

)=sin(90

∘

−(3x−10

∘

)) since sin(90

∘

−θ)=cosθ

⇒x−20

∘

=90

∘

−(3x−10

∘

)

⇒x−20

∘

=90

∘

−3x+10

∘

⇒x+3x=100

∘

+20

∘

=120

∘

⇒4x=120

∘

∴x=

4

120

∘

=30

∘