Q72.The value of tan-1cos15๐ is equal to sin๐ 4 ๐ ๐ (1) - (2) - 4 8 (3) -5๐ (4) -4๐ 12 9
What This Question Tests
This question requires evaluating standard trigonometric values and then finding the principal value of the inverse tangent function.
Concepts Tested
Formulas Used
cos(15ฯ/4) = cos(4ฯ - ฯ/4) = cos(ฯ/4)
sin(ฯ/4)
๐ NCERT Sections This Tests
9.15 โ Apply Mirror Equation And The Condition:
Physics Class 12 ยท Chapter 9
9.15 Apply mirror equation and the condition: (a) f < 0 (concave mirror); u < 0 (object on left) (b) f > 0; u < 0 (c) f > 0 (convex mirror) and u < 0 (d) f < 0 (concave mirror); f < u < 0 to deduce the desired result.
5.12 โ Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 ยท Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
11.3 โ The Photoelectric Cut-Off Voltage In A Certain Experiment Is 1.5 V.
Physics Class 12 ยท Chapter 11
11.3 The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?
๐ Question Details
- Chapter
- Inverse Trigonometric Functions
- Topic
- Evaluation of inverse trigonometric expressions
- Year
- 2022
- Shift
- 25 Jun Shift 2
- Q Number
- Q72
- Type
- MCQ
- NCERT Ref
- Class 12 Mathematics Ch 2: Inverse Trigonometric Functions
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