railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि sec2 A + tan2 A = \(\frac{4}{{17}}\) है, तो sec4 A - tan4 A का मान किसके बराबर है?
1
\(\frac{{13}}{{17}}\)
2
\(\frac{4}{{13}}\)
3
\(\frac{4}{{17}}\)
4
\(\frac{5}{{17}}\)