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Mathematics

Mathematics: solved problems

Worked problems in algebra and introductory calculus, solved step by step.

Derivative

All problems in this topic
Find the derivative of the function f(x) = x² + 3xgrades 10–11Find the derivative of the function f(x) = sin(2x)grades 10–11Find the derivative of the function f(x) = x·ln(x)grades 10–11Find the derivative of the function f(x) = 3x³ − 5x² + 7grades 10–11

Percentages

All problems in this topic
An item went up 20%, then down 20% — how did the price change?grades 6–9After a 15% discount an item costs 2550 ₪ — what was the price before the discount?grades 6–9A deposit of 50 000 ₪ at 10% a year with compounding — how much after 2 years?grades 9–11
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