NDA2019MathematicsTrigonometric Ratios & IdentitiesActual
Consider the following statements: 1. + can never be equal to 1.5 . 2. + can never be less than 2 . Which of the above statements is/are correct?
Options
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Correct answer
A. 1 only
Step-by-step solution
aligned & (i) + = 3 2 & 1+ ^2 = 3 2 & 2 ^2 -3 +2=0 aligned here discriminant is negative No real roots No solution. (ii) In second quadrant both and are negative In second quadrant value is less than 2 . So only statement 1 is true.