Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If  cos230° + sin230° + tan245° + cot230° + x = 6 , find the value of x .

Options:

2

-1

0

1

Correct Answer:

1

Explanation:

⇒ cos230° + sin230° + tan245° + cot230° + x = 6

⇒ (\(\frac{\sqrt {3}}{2}\))2 + (\(\frac{1}{2}\))2 + (1)2 + (\(\sqrt {3}\))2 + x = 6

⇒ \(\frac{3}{4}\) + \(\frac{1}{4}\) + 1 +  3 - x = 6

⇒ 1 + 1 + 3 + x  = 6

 x = 1