Thursday

March 5, 2015

March 5, 2015

Posted by **alex** on Monday, January 10, 2011 at 12:34am.

(A=30degrees)

sin 2A + tan 3A/2 - cos A + sec(A+15), when A= 30degrees

There were no parentheses and no exponents. please help by showing the work in details. Thank you!

I pluged in the numbers and got this

I dont know if its right or wrong..

2*1/2 + (3*sqrt3/3)/2 -sqrt3/2 + (2sqrt3+15)

- trigonometry -
**drwls**, Monday, January 10, 2011 at 2:43amYour answer is incorrect. For A = 30 degrees, it is easy to give exact values for each term

sin60 + tan45 -cos30 +sec(45)

= (sqrt3)/2 +1 -(sqrt3)/2 +sqrt2

= 1 + sqrt2

- trigonometry -
**alex**, Monday, January 10, 2011 at 3:39amThank you soo much.

- trigonometry -
**alex**, Monday, January 10, 2011 at 3:50amCan you add 1 to the sqrt of 2 .

Or was that the final answer.

- trigonometry -
**drwls**, Monday, January 10, 2011 at 7:42amThat was the final and exact answer.

**Answer this Question**

**Related Questions**

Trigonometry - ``(please show the steps to how the problems were solved) Using ...

trigonometry - this is exactly how the question is written and i tried to solve ...

trigonometry - Find the exact value of each expression(no calculator): 1) sin^2(...

Trigonometry - Using exact values, find the value of: a. 12 sin 30 degrees ¨C 6 ...

Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...

Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...

MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...

physics - If the mass of the skier is 50 kg, what is the magnitude of the force ...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...

Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...