Thursday

February 26, 2015

February 26, 2015

Posted by **Merc** on Monday, July 2, 2012 at 3:54pm.

3sin^2(x)=cos^2(x) ; 0≤x≤2π

- math -
**Reiny**, Monday, July 2, 2012 at 4:00pm3sin^2 x - cos^2 x = 0

3sin^2x - (1- sin^2 x) = 0

4sin^2 x = 1

sin^2 x = 1/4

sinx = ± 1/2

So x could in in all 4 quadrants,

(30°, 150°, 210°, and 330°)

x =π/6, 5π/6, 7π/6. and 11π/6

**Answer this Question**

**Related Questions**

calculus - In spherical coordinates, the inequalities 0≤ρ≤2, 3...

Pre Calculus - sec x = -2 , π ≤ x ≤ 3π Use a calculator to...

PreCalc - I'm not sure how to solve these with calculator. sec x = -2 , π...

algebra 1 help please - 4) a student score is 83 and 91 on her first two quizzes...

Trig - On the same set of axes, sketch and label the graphs of the equations y...

Algebra 2 - Solve. 4a-2≤a+1≤3a+4 4a-2-1≤a+1-1≤3a+4-1 4a-...

Trigonometry - IM STUCK ON THESE :( 1. What is the equation for shifting the ...

Trigonometry - IM STUCK ON THESE :( 1. What is the equation for shifting the ...

math - Solve the trigonometric equation 3sinθ=1.2 for 0≤θ≤...

Advanced Functions/Precalculus - Trigonometry Questions 1. Solve the equation ...