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26 Nov 2018, 15:50
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For the GMAT, are you expected to know off by heart common trig identities? E.g. sin45, cos60, tan30 etc..
Also, are you expected to have memorised formulae like the volume of a sphere?
Also, are you expected to have memorised formulae like the volume of a sphere?
26 Nov 2018, 18:52
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jamalabdullah100
You don't need trigonometry. As for what you should memorize, one possible set of content areas can be found here.
27 Nov 2018, 09:09
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Hi jamalabdullah100,
No need to memorize formulas for 3D geometry - the formula is given in the question.
Trigonometry is not directly.But, it is good to know that the sides are always in the ratio 1: \(\sqrt {3}\) :2a for a right triangle where the angles are 30°, 60°, and 90°, and 1:1:\(\sqrt{2}\) for 45°, 45°, and 90° right triangle. Rfer to the math book, you can find the link in the previous link.
Hope this helps!
No need to memorize formulas for 3D geometry - the formula is given in the question.
Trigonometry is not directly.But, it is good to know that the sides are always in the ratio 1: \(\sqrt {3}\) :2a for a right triangle where the angles are 30°, 60°, and 90°, and 1:1:\(\sqrt{2}\) for 45°, 45°, and 90° right triangle. Rfer to the math book, you can find the link in the previous link.
Hope this helps!
