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Question Number 57700 by Nameed last updated on 10/Apr/19

R(1 − cosθ) = 0.5  Rsinθ = 4  R = ?  θ = ?

R(1cosθ)=0.5Rsinθ=4R=?θ=?

Answered by tanmay.chaudhury50@gmail.com last updated on 10/Apr/19

R×2sin(θ/2)cos(θ/2)=4  R(2sin^2 (θ/2))=(1/2)  ((2Rsin^2 (θ/2))/(2Rsin(θ/2)cos(θ/2)))=(1/(2×4))  tan(θ/2)=(1/8)→θ=2tan^(−1) ((1/8))  sin(θ/2)=(1/(√(8^2 +1^2 )))=(1/(√(65)))  R×2sin^2 (θ/2)=(1/2)  R×2×(1/(65))=(1/2)  R=((65)/4)

R×2sinθ2cosθ2=4R(2sin2θ2)=122Rsin2θ22Rsinθ2cosθ2=12×4tanθ2=18θ=2tan1(18)sinθ2=182+12=165R×2sin2θ2=12R×2×165=12R=654

Commented by math1967 last updated on 10/Apr/19

tan(θ/2)=(1/8) ∴ θ=2tan^(−1) (1/8)

tanθ2=18θ=2tan118

Commented by tanmay.chaudhury50@gmail.com last updated on 10/Apr/19

thank you dada...vote ar ki khabar...kolkata te

thankyoudada...votearkikhabar...kolkatate

Commented by math1967 last updated on 11/Apr/19

Jor prochar cholche

Jorprocharcholche

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