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integrate cos^2(x)*sin(x)

integral of cos 2 (x)*sin(x) we notice that we can use the spot the ball method here: Guessed integral: cos 3 (x) Differentiated Guessed Integral: -3sin(x)cos 2 (x), therefore our solution is (-1/3)*cos 3 (x)+c
CP
Answered by Cezar P. • Maths tutor
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What's the difference between velocity and speed?

Velocity and speed and vector and scalar quanities respectively. Vector quantities have both direction and magnitude (size), whilst scalars only have magnitiude. It is important to distinguish between the tw...
MS
Answered by Mollie S. • Physics tutor
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If a=2 and b=3 , find the value of 2(a−b)+3(a+b)

My explanation would depend on the level of understanding of the person but one way would be the following: We know that a = 2. Substitute the value of "a" in the given equation: 2(2-b)+3(2+b) We k...
AC
Answered by Andrea C. • Maths tutor
15309 Views

Can you help me solve the equation x^2+3x-5

We can see right off the bat that this is a quadratic equation. As always with quadratics, it is easiest to see if it factorises first. To factorise, you need to find two numbers that multiply together to cr...
MS
Answered by Mollie S. • Maths tutor
5153 Views

Explain how fair trade benefits the economies of developing countries (4 marks)

When farmers are involved in fair trade farming it means they receive a guaranteed fair price for they products (e.g. bananas or avocados), and therefore they have a consistent and secure income. This gives ...
CM
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