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tan a + tan b (formula and example) (sum of… +15
a^3 + b^3 (formula and example) +4
a^2 - b^2 (formula and example) +4
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Factor X^3 - 1 (problem with solution) +3
The formula for a^3 - b^3 [the difference of cubes] +3
What is sine of 90 degrees? (sin 90 degrees) +3
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The formula for (a + b) ^ 3 [the cube… +3
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