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00
Use the sum or difference formula to evaluate Sin 2700
1
-1/2
-1
Use the sum or difference formula to evaluate Cos 1500
−32-\frac{\sqrt{3}}{2}−23
1/2
12\frac{1}{\sqrt{2}}21
Use the sum or difference formula to evaluate Cos 2100
322+122\frac{\sqrt{3}}{2\sqrt{2}}+\frac{1}{2\sqrt{2}}223+221
−32\frac{-\sqrt{3}}{2}2−3
Use the sum or difference formula to evaluate Sin 1500
Use the sum or difference formula to evaluate Sin 2100
Use the sum or difference formula to evaluate Sin 3000
Use the sum or difference formula to evaluate Sin 1350
64\frac{\sqrt{6}}{4}46
Use the sum or difference formula to evaluate Sin 150
322−122\frac{\sqrt{3}}{2\sqrt{2}}-\frac{1}{2\sqrt{2}}223−221
Use the sum or difference formula to evaluate Cos 1350
−12\frac{-1}{\sqrt{2}}2−1
Use the sum or difference formula to evaluate Sin 1950
64+24\frac{\sqrt{6}}{4}+\frac{\sqrt{2}}{4}46+42
−64−24\frac{-\sqrt{6}}{4}-\frac{\sqrt{2}}{4}4−6−42
It is done.