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Find values of x in the interval 0<x<360 degrees. For which 5sin^2(x) + 5 sin(x) +4 cos^2(x)=0

This question is split up into two parts.
Firstly recall the trigonometric identities you know, the trick here is to eliminate one of the squared terms. Using 4sin^2(x) +4cos^2(x) = 4, the cos term i...

JG
Answered by James G. Maths tutor
8571 Views

How do you know where the bonds link to form a new molecule?

Bonds in a molecule BREAK when that molecule is reacted with another molecule. They then MAKE another bond.This bond can be between molecules or can just be part of the new molecule.There are many types o...

NI
Answered by Nerea I. Chemistry tutor
1728 Views

Here are four fractions, 4/5 3/8 12/30 14/20. Write them in order of size, starting with the smallest fraction.

First cancel down the fractions to make the numbers as small as possible, then make all fractions have the same denominator. 12/30 becomes 2/5. 14/20 becomes 7/10. So the new fractions are 4/5 3/8 2/5 and...

KS
Answered by Kim S. Maths tutor
4484 Views

Differentiate the following... f(x)= 5x^4 +16x^2+ 4x + 5

The rule for differentiating a simple equation such as this is, to times the coefficient by the power and the take one away from the power. Therefore, lets look at 5x^4 you would times the 5 by 4 to get 2...

CM
Answered by Celia M. Maths tutor
3214 Views

How should I structure my opinion piece in paper 2 (HL)

Firstly, I would start with examining the question and determining what you would like to argue, weather it is for or against the prompt. The you should expand on your opinion using concrete real world ex...

AL
Answered by Anna L. Spanish tutor
1509 Views

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