Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Find the value of sin (50° + A) - cos (40° - A).
1
2
2
0
3
-1
4
More than one of the above
5
None of the above