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Maths
A Level

There's a school in India where only 60% of students have internet access. What is the probability of choosing eight students randomly, five of whom have internet access? (Info: Each student's internet access (or lack of it) is independent from all others

Imagine a bag of balls. Each ball represents a student, and those with A on them are students with internet access, while balls without an A are those without internet access. We know from the question, w...

Answered by Josh G. Maths tutor
2779 Views

Find the integral of (sinxcos^2x) dx

To find the Integral of (sinxcos^2x) dx, we must first use our knowledge of integration and differentiation of simple trigonometric functions. Such as Sinx and Cosx. Combined with our knowledge of integra...

Answered by Zachary S. Maths tutor
12577 Views

Given that y = 16x + x^(-1), find the two values of x for which dy/dx = 0

The first thing required is to find out what dy/dx is in terms of x. For this, we need to differentiate y with respect to x which be can so to each term of the polynomial. All you need to do is mutiply th...

Answered by James M. Maths tutor
6824 Views

Express 3sinx - 2cosx in the form R(sin(x-a) given R>0 and 0<a<90°. Hence solve 3sinx - 2cosx = 1 in the interval 0<x<360°. What are the maximum and minimum values of 2sinx - 3cosx?

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Answered by Calem C. Maths tutor
8937 Views

Find ∫(x^3+x^2+6)dx.

∫(x3+x2+6)dx= ∫x3dx +∫x2dx+∫6dx =x4/4 +x3/3 +6x+C.

Answered by Georgiana I. Maths tutor
5650 Views

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