(iii) Use De Moivre's Theorem to show that cos 40 = 8 cos 0-8 cos0 + 1. (iv) Hence, find all the roots to the equation 16x*- 16x2 + 1 = 0. (v) Hence or otherwise, deduce that: 5Tt cos- 120 cos- 12 4

Q: I need help

A: Cos(B) = ?

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A: The dilation of a given point P(x,y) by factor K, centered at C(a,b), moves the point to P'(x',y')…

Q: I need help with part f

A: (f) Determine whether the income is independent of education level are not. The income is…

Q: 3/5 48 M5

A: Given, Simplify   450+35

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A: Hey, since there are multiple subparts posted, we will answer first question. If you want any…

Q: Sample Count Sample Proportion Color Red 9. Brown Yellow 6. Green 10 Orange 12 Blue 9. Total 54…

A: Sample proportion for each color can be calculated as follows:

Q: Difficult to read/understand.

A: Let's solve.

Q: Need answers

A: Given that, PQ has coordinates P(3, -6) and Q(3, 9). The center is (3, -1) and the dilation factor…

Q: What is i ? Explain.

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Q: Need help with part 2

A: The objective is to find the product AB of matrices.

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A:

Q: Need (v) and (vi).

A:

Q: Help step by step explanation written

A: The area between 7 and 11.9 represents the area to the right of 7 and to the left of 11.9. This can…

Q: a)RS=? RS=? C) QST=?

A:

Q: Need assistance

A: