Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
The value of sec x - cos x = ?
1
tan x sin x
2
sec x tan x
3
tan x cos x
4
More than one of the above
5
None of the above