Question

smiley IF 2sin2220 = p+qcosθ, FIND SMALLEST POSITIVE VALUE OF θ, WHEN p=1 AND q = -1.

Joshi sir comment

2sin222.5 = 1- cos45 = 1 + (-1)cos45

so θ = 45 

Read 4 Solution.

2sin2220=p+qCOSθ

OR, 1-COS2*220=1-cosθ

or cosθ=cos44

or θ=440

PRINCE PAL 11 year ago is this solution helpfull: 1 0

2sin2220=p+qCOSθ

OR, 1-COS2*220=1-cosθ

or cosθ=cos44

or θ=440

PRINCE PAL 11 year ago is this solution helpfull: 0 0

sin2θ=(  1-cos2θ) / 2  so I think solution submitted by someone , need correction .

SARIKA SHARMA 11 year ago is this solution helpfull: 1 0

here in the ques sin222= p+qcosθ is given, previously it is typed  by mistake

SARIKA SHARMA 11 year ago is this solution helpfull: 1 0

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