Question 1 Report
If two angles of a triangle are 30o each and the longest side is 10cm. Calculate the length of each of the other sides
Answer Details
102 = 2x2 - 2x2 cos 120o (Cosine rule) 100 = 242 - 2x2 - 2x2 x -12 1 2 100 = 3x2 + x2 = 3x2 x = √1003 100 3 = 10√3 10 3 x 3√3 3 3 x = 1033 3 3 cm
If 9(x - 12 1 2 ) 3x2
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simplify 1√3−2 1 √ 3 − 2 - 1√3+2
change 7110 to base 8
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Evaluate 35240.05 3524 0.05 correct to 3 significant figures
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If 2log3 y + log3 x2 = 4, then y is
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