Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
In ΔABC, ∠B = 90° and AB ∶ BC = 1 ∶ 2. The value of cos A + tan C is:
1
\(\frac{5+\sqrt5}{2\sqrt5}\)
2
\(\frac{1+\sqrt5}{2\sqrt5}\)
3
\(\frac{2\sqrt5}{2+\sqrt5}\)
4
More than one of the above
5
None of the above