state gov Haryana CET Group C Mock Test Series 2025 (New Pattern) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
जर x = a सेकंद θ + b tan θ आणि y = a tan θ + b sec θ, तर x 2 - y 2 शोधा.
1
a + b
2
a 2 - b 2
3
\(\sqrt{a^2+b^2}\)
4
a 2 + b 2