Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Trigonometry Trigonometric Identities
Find the value of \(tan48^{\circ}.tan23^{\circ}.tan42^{\circ}.tan67^{\circ}\).
1
0
2
1
3
2
4
More than one of the above
5
None of the above