If sin 3 theta = cos(theta-26).Find theta and sin theta =1/3 find 2cot²theta +2.
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sin3Ф = cos(Ф-26) sinФ = 1/3
cos(90-3Ф) = cos(Ф-26) = 2cot^2Ф + 2 (B^2 = H^2 + P^2)
90-3Ф = Ф-26 = 2(2√2/1)^2 + 2 ( B = 2√2)
90+26 = Ф +3Ф = 2(8/1)^2 + 2
116 = 4Ф = 16+2
Ф = 116/4 = 18
Ф = 29
adityamandwekar342:
Thanks bro
Answered by
1
Step-by-step explanation:
sin3theeta=cos(theeta-26°)
cos(90°-3theeta)=cos(theeta-26°)
90°-3theeta=theeta-26°
90°+26°=3theeta+theeta
116°=4theeta
theeta=116°/4
theeta=29°
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