✓ Board-verified
Mathematics · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 3 · Q5
The value of cos ((π)/6+ cot^-1(-√ 3 )) is
The value of $\displaystyle \cos \left(\frac{\pi}{6}+\cot ^{-1}(-\sqrt{3})\right)$ is
Official answer
(A)
$\displaystyle -1$
All Inverse Trigonometric Functions questions2025 question paperNCERT solutions: Inverse Trigonometric FunctionsPractice Inverse Trigonometric Functions →
More from Inverse Trigonometric Functions
- Find the domain of g(x)= cos^-1(x^2-1). Hence, find the value of x for which g(x)=(π)/3. Also, write the range of cos^-1 x other than its principal…2026
- The principal value of cot^-1(-1/(√3)) is:2025
- Evaluate sin^-1( sin (3 π)/4)+ cos^-1( cos π)+ tan^-1(1) OR Draw the graph of cos^-1 x, where x ∈[-1,0]. Also, write its range. 22023
- The principal value of sec^-1(√2)+2 cosec^-1(-√2) is:2026
- Assertion: Maximum value of ( cos^-1 x)^2 is π^2. Reason (R): Range of the principal value branch of cos^-1 x is [(-π)/2, (π)/2].2023
- Find the value of [ sin^2{ cos^-1(3/5)}+ tan^2{ sec^-1(3)}].2024
- Write the domain and range (principle value branch) of the following functions: f(x)= tan^-1 x2023
- If a function f: X → Y defined as f(x)=y is one-one and onto, then we can define a unique function g: Y → X such that g(y)=x, where x ∈ X and y=f(x),…2024
CBSE Class 12 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.