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September 19, 2014

September 19, 2014

Posted by **Sheridan** on Wednesday, November 21, 2012 at 8:26pm.

- PreCal -
**drwls**, Thursday, November 22, 2012 at 6:52amUse the sin(A + B) formula

sin(A + B) = sin A cosB + sin B cosA,

where A = sin^-1(4/7) and B = pi/6

sin(pi/6) = 1/2

cos(pi/6)= (sqrt3)/2

sin(theta) = 4/7 = 0.57143

cos(theta) = sqrt[1 - (4/7)^2]

= sqrt(33/49) = 0.82065

Take it from there.

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