The correct order to express cos3x in terms of cosx is; As shown in steps 1 to 9 below.
<h3>How to simplify Trigonometric Identities?</h3>
The steps to simplify the trigonometric identities cos 3x in terms of cos x are as follows;
Step 1; cos x = cos(2x + x)
Step 2; cos(2x) cosx - sin(2x) sinx
Step 3; 1 - 2sin^2x(cosx) -(2sinxcosx)sinx
Step 4; cosx - 2sin²x cosx - 2sin²x cosx
Step 5; cosx - 4sin²x cosx
Step 6; cosx( 1 - 4sin²x)
Step 7; cosx{1 - 4(1 - cos²x)}
Step 8; cosx{-3 + 4cos²x}
Step 9; 4cos³x - 3cosx
Read more about Trigonometric Identities at; brainly.com/question/7331447
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Answer:
The combined score was 191
Explanation:
91 (Colin’s score) + 9 (how many more Brian had than Colin) = 100 (Brian’s score)
91 (Colin’s score) + 100 (Brian’s score) = 191 (combined score)
Answer:
can you please post the quadratic equation
Step-by-step explanation:
B because 14-5=9 and 9-8= 1
Answer:
Step-by-step explanation:
s = sequence
= first term of sequence
= 7
= 16
Find the difference between the term number and the values.
Terms:
4 - 1 = 3
Values:
16 - 7 = 9
For every 3 terms, you add 9.
Divide, to find the amount you add for 1 terms.
3 / 3 = 1
9 / 3 = 3
For every 1 terms, you add 3.
<h2>Answer:</h2>
= 7
= 10
= 13
= 16
= 19
= 22