defence exam Indian Navy Fireman/Fire Engine Driver Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If for some θ lying between 0° and 90°, tanθ = 1, then what is the value of sin2θ - 2sinθ cosθ ?
1
-1
2
0
3
1/2
4
-1/2