3 years ago

Find the first five terms of the sequence below a1=3 An=an-1+6

Mathematics

1 answer:

mihalych1998 [28]3 years ago

4 0

The first dove terms are:3,9,12,15,18

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3. Let sin 21 = 0.358. What is the value of x for cos x=0.358?

r-ruslan [8.4K]

Answer:

$\cos(69)$

Step-by-step explanation:

We will use the co-function identity for sine, where:

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Since sin(21)=0.358=cos(x). This means that:

$21=90-x$

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$x=69\textdegree$

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3 years ago