state gov UP Lekhpal Mock Test 2023 - 24 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
The value of (cos20° + sin245° + sin260°) (sin290° – cos245° + cos260°) is
1
15/16
2
25/16
3
7/4
4
27/16
The value of (cos20° + sin245° + sin260°) (sin290° – cos245° + cos260°) is