Answer:
See below.
Step-by-step explanation:
So, we have:

Recall that secant is simply the reciprocal of cosine. So we can:

Now, recall the unit circle. Since cosine is negative, it must be in Quadrants II and/or III. The numerator is the square root of 3. The denominator is 2. The whole thing is negative. Therefore, this means that 150 or 5π/6 is a candidate. Therefore, due to reference angles, 180+30=210 or 7π/6 is also a candidate.
Therefore, the possible values for theta is
5π/6 +2nπ
and
7π/6 + 2nπ
72, the sentence is 82 - 10 = 72
Answer:
- 8
Step-by-step explanation:
Given
(4 +4 x²)(3x² - 5)
Each term in the second factor is multiplied by each term in the first factor, that is
4(3x² - 5) + 4x²(3x² - 5) ← distribute parenthesis
= 12x² - 20 + 12
- 20x² ← collect like terms
= 12
- 8x² - 20
with coefficient of x² term being - 8
Answer:
65.3
Step-by-step explanation:
89.10 - [(1.20 × 31)+ (4.90 + 7)]
89.10 - [37.2 + 11.9]
89.10 - 23.8
= 65.3