Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
What is the value of \(\frac{\cos(50^\circ +A)-\sin(40^\circ -A)}{\cos40^\circ \sec40^\circ}\)?
1
0.5
2
0
3
2
4
More than one of the above
5
None of the above