state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Mathematics Differential Calculus Applications of Derivatives
The greatest value of 5 sin2 x + 7 cos2 x - 4 sin x cos x will be:
1
6 - √5
2
6 + √5
3
-6 + √5
4
-6 - √5
5
Question Not Attempted