The value of sino + sin? (5.) + Siri (5+ sin(a) is sin food to A) 1 B) 2 c] - 1 2 D] -2
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Answered by
0
Answer: sin5A=sin(3A+2A)
=sin3Acos2A+cos3Asin2A
=(3sinA−4sin³A)(1–2sin²A)+cos(2A+A)sin2A
=3sinA−10sin³A+8sin
5
A+[cos2AcosA−sin2AsinA]sin2A
=3sinA−10sin³A+8sin
5
A+[(1–2sin²A)cosA−2sin²AcosA]2sinAcosA
=3sinA−10sin³A+8sin
5
A+[cosA−4sin²AcosA]2sinAcosA
=3sinA−10sin³A+8sin
5
A+2sinAcos²A−8sin³Acos²A
=3sinA−10sin³A+8sin
5
A+2sinA(1−sin²A)−8sin³A(1−sin²A)
=3sinA−10sin³A+8sin
5
A+2sinA−2sin³A−8sin³A+8sin
5
A
=5sinA−20sin³A+16sin
5
Answered by
0
Step-by-step explanation:
sin
−1
(sin5)=sin
−1
(sin(5−2π))=(5−2π)
As (5−2π)∈[−
2
π
,
2
π
]
Assertion false but Reason is true
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