Trigonometry MCQs
Practice free Trigonometry multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 357 questions — no login required.
Question 343easy
If $$\frac{{2{{\tan }^2}{{30}^ \circ }}}{{1 - {{\tan }^2}{{30}^ \circ }}}$$ + $${\sec ^2}{45^ \circ }$$ - $${\sec ^2}{0^ \circ }$$ = $$x\sec {60^ \circ }{\text{,}}$$ then the value of x is?
Question 344easy
If $$\frac{{{{\sin }^2}\phi - 3\sin \phi + 2}}{{{{\cos }^2}\phi }} = 1,$$ where 0° < $$\phi $$ < 90° then what is the value of (cos2$$\phi $$ - sin3$$\phi $$ + cosec2$$\phi $$)?
Question 345easy
If $$\tan \theta = \frac{3}{4}{\text{,}}$$ find the value of $${\text{cos2}}\theta $$ ?
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Question 346easy
If sin 3A = cos(A - 26°), where 3A is an acute angle then the value of A is?
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Question 350easy
If tanA - tanB - tanC = tanA.tanB.tanC, what is the value of A in terms of B and C?
Question 351easy
The value of $$\left( {\frac{{\sin \theta + \sin \phi }}{{\cos \theta + \cos \phi }} + \frac{{\cos \theta - \cos \phi }}{{\sin\theta - \sin\phi }}} \right)$$ is?