MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Range of Trigonometric Ratios from 0 to 90 Degrees

Solve for x...

Question

Solve for $x$ :
$2 cos (3 x - 15^{\circ}) = 1$

Open in App

Solution

$2 c o s (3 x - 15) = 1$
$c o s (3 x - 15) = \frac{1}{2}$
$c o s (3 x - 15) = c o s 60$
$3 x - 15 = 60$
$3 x = 75$
$x = 25^{\circ}$

Suggest Corrections

thumbs-up

0

Similar questions

x

2 cos 3 x - 1 = 0

2 cos 3 x - 1 = 0

0 \leq x \leq \frac{π}{2}

2 cos (3 x - 15^{0}) = 1

x^{\frac{5}{4} - 2 cos 3 x} = \sqrt[4]{x}

Q. Solve the following equations.

2 s i n 3 x - \frac{1}{s i n x} = 2 c o s 3 x + \frac{1}{c o s x} .

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Range of Trigonometric Ratios from 0 to 90

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Range of Trigonometric Ratios from 0 to 90 Degrees

Standard X Mathematics

Join BYJU'S Learning Program

CrossIcon