Trigonometry sin cot CAST
5. (a) For the triangle, a=10, b=12, B=60°, labelled by convention, find all the angles and sides.
(b) Solve the following, 𝑠𝑖𝑛𝜗−𝑐𝑜𝑡^2𝜗=1, express your solution in degrees in the range –180°≤𝜗≤180°, and in radians in the range 0°≤𝜗≤2πrad.
If someone could do these and show working out that would be great!
note from me (the cot is squared it just does not show the cot to the power of 2 very well)
8
Answer
Answers can only be viewed under the following conditions:
- The questioner was satisfied with and accepted the answer, or
- The answer was evaluated as being 100% correct by the judge.
1 Attachment

4.8K
The answer is accepted.
Join Matchmaticians Affiliate Marketing
Program to earn up to a 50% commission on every question that your affiliated users ask or answer.
- answered
- 1032 views
- $15.00
Related Questions
- Compute $\lim_{x \rightarrow 0} \frac{1-\arctan (\sin(x)+1)}{e^{x}-1}$
- Find $\int \sec^2 x \tan x dx$
- Find the real solution of the equation $x^{2}-10=x \sin{x}$.
- Analyzing the Domain and Range of the Function $f(x) = \frac{1}{1 - \sin x}$
- Need formula help
- A generator at a regional Power Station produces an alternating voltage, according to the function, 𝑉 below:
- Show that $\sum_{n=1}^{\infty} \frac{\sin n}{n}$ is convergent
- Prove the trig equation