• when theta = π/3
x = a (theta+sin theta)
Answers
Answered by
0
Answer:
Step-by-step explanation:
f(θ)
=sinθ.sin(
3
π
+θ).sin(
3
π
−θ)
=
2
sinθ
.2.sin(
3
π
+θ).sin(
3
π
−θ)
=
2
sinθ
[−cos(
3
2π
)+cos(2θ)]
=
2
sinθ
[cos(2θ)+
2
1
]
=
4
sinθ
+
4
2sinθ.cos2θ
=
4
sinθ+2sinθ−4sin
3
θ
=
4
3sinθ−4sin
3
θ
=
4
sin3θ
Now maximum value of f(θ) will be when sin3θ=1
That is θ=
6
π
Hence
f(θ)ϵ[−
4
1
,
4
1
]
Hence reason is false.
Answered by
0
Answer:
this reason is false . please mark brainliest
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