prove that cos²theta upon sin theta + sin theta = cosec theta
please guys i want it immediately
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Answer:
consider the identities,
cosec² θ = 1+cot² θ
sin² θ = 1 - cos² θ
(cosec θ+sin θ)(cosec θ-sin θ)
= cosec² θ - sin² θ
= 1+cot² θ - (1 - cos² θ)
= cot² θ + cos² θ
Answered by
1
Answer:
Cosec theta=1/sin theta
Cos 2 theta/sin theta-1/sin theta+sin theta
Take lcm
Cos2 theta /sin theta-1/sin theta+sin2 theta/sin theta
Cos2 theta-1+sin2 theta/sin theta
(Cos2 theta +sin2 theta=1)
1-1=0
Hence, it is proved
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