Answer:
B. (x+4)(x+i)(x-i)
Step-by-step explanation:
Let
We can factor this polynomial by grouping:
We factor further to obtain:
We apply difference of two squares to get:
Which expression is equivalent to 12/15? A. 25÷12 B. 12÷25 C. 12÷1/25 D. 25÷1/12
1 answer:
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Answer: The slope is .
Step-by-step explanation:
1. You set up your Slope Formula .
2. Substitue your points into the formula..
3. Once you substitute, you will solve the equation.
4. Simplify the equation if you have to .
Answer:
Step-by-step explanation:
By using the cos square identity in trigonometry i.e., cos2ϴ = 1 – sin2 ϴ, we can evaluate the exact value of cos(33 ). For calculating the exact value of cos(∏/6), we have to substitute the value of sin(30°) in the same formula.
cos(30°) = √1 – sin230°
The value of sin30° is 1/2 (Trigonometric Ratios)
cos(30°) = √1 – (1/2)2
cos(30°) = √1 – (1/4)
cos(30°) = √(1 * 4 – 1)/4
cos(30°) = √(4 – 1)/4
cos(30°) = √3/4
Therefore, cos(30°) = √3/2
