Trig help? Given cos θ = 2/3 and θ is in quadrant IV. Also, given sin B = 1/4 and B is in quadrant II. Find...?
a. sin(2θ)
b. sin(θ+B)
c. cos(θ-B)
d. tan(2B)
Help please? I've tried to solve these problems, now I just need to double check. Appreciate any help on any of the problems, no need to solve them all. Thanks!
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Hi,
a. sin(2θ) = -.9938
b. sin(θ+B) = .8884
c. cos(θ-B) = -.8318
d. tan(2B) = -.5533
I hope that helps!! :-)