Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
if cos4 θ - sin4 θ = k, then the value of \(\frac{{1 + k}}{{1 - k}}\) is:
ଯଦି cos4 θ - sin4 θ = k, ତେବେ \(\frac{{1 + k}}{{1 - k}}\) ଏହାର ମୂଲ୍ୟ ହେଉଛି:
1
cot2 θ
2
24
3
tan2 θ
4
cosec2 θ