Question

if 1/√3 cos theta +sin theta =2/√3 , then the value of theta in circular measure is
(A) π/2
(B)π/3
(C)π/4
(D)π/5​

Answer 1

Answer:

is the ans.

Step-by-step explanation:

because if u mult. by root 3 by 2 on both side the it became ( 60 + theta) is equal to 1 then campare . and the value of ...

cosθ+(13–√)sinθ=23–√

⇒(3–√2)cosθ+(12)sinθ=1

⇒sin60∘cosθ+sinθcos60∘=1

sin(60∘+θ)=sin90∘

60∘+θ=90∘