Q. 8 B4.2( 5 Votes )

Find x from the f

Given

x cot (90° + θ) + tan (90° + θ) sin θ + cosec (90° + θ) = 0

x [-tan θ] + [-cot θ] sin θ + sec θ = 0

-x sin θ – cos2 θ + 1 = 0

We know that 1 – cos2 θ = sin2 θ

-x sin θ + sin2 θ = 0

x sin θ = sin2 θ

x = sin2 θ/ sin θ

x = sin θ

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