169k views
0 votes
FIND VALUE
A) tan 30° + cot 30° + sin 60°​

1 Answer

0 votes

Answer:
(4√(3) )/(3) +(1)/(2)

Explanation:

You can either do this manually or use your calculator. Using your calculator, make sure that your calculator is in degree mode, then enter tan(30) + (1/tan(30)) + sin(60). [1/tan(30) is equal to cot(30) because tangent and cotangent are inverse functions].

Manually, use the unit circle. Tangent is sine over cosine. Sine of 30 degrees is 1/2. Cosine of 30 degrees is
√(3) /2. 1/2 divided by
√(3)/2 is
√(3)/3. Cotangent is 1/tangent so take 1/
√(3)/3 which is
√(3). Then we already said that sine of 30 degrees is 1/2, so add them all together.


√(3)/3+√(3)+(1)/(2) which is equal to
(4√(3) )/(3) +(1)/(2) or approximately 2.8094.

User Atams
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories