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OpenStudy (anonymous):
Maths exam in 1hr 10mins :):):) How do i work out the exact value of sin 15?? Thanks
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OpenStudy (solomonzelman):
sin(15)=sin(45-30)=sin45cos30-cos45sin30=(√2/2)(√3/2)-(√2/2)(1/2) you can finish the rest.
OpenStudy (anonymous):
thanks heaps
OpenStudy (solomonzelman):
anytime
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