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ICSE Class 10 Answered

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Asked by ketanpatil168262884377 | 28 Nov, 2023, 05:37: PM
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Multiple questions should not be sent by one posting.
Only questions 3 and 4  are solved
 
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Question (3)
 
θ = -60o
 
cosθ = cos(-60o ) = cos(60o )  because cosine function is even
 
cosθ = cos(-60o ) = cos(60o ) = 1/2
 
sinθ = sin(-60o) = - sin(60o) because sine function is odd
 
cosecθ = 1/sinθ = 1/sin(-60o) = - 1/sin(60o) = - 2/√3
 
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Question (4)
 
Answered by Thiyagarajan K | 28 Nov, 2023, 10:31: PM
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