1.

If θ lies in the first quadrant and cos θ = 8/17, then find the value of cos (30° + θ) + cos (45° – θ) + cos (120° – θ).

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30-Dec-2020 — In ΔABC, if cosA+2cosB+cosC=2andcot(A2)+cot(C2)=λcot(B2), then FIND the value of λ. JEE MAIN admit card 2021 RELEASED, know step-by-step process to download the JEE Main 2021 admit.



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