Question

Mathematics Class
Trigonometry !!!!
help me out​

Answer 1

Hope this helps you.

$\frac{1 + 2{ sinx }^{2} }{1 +3 {tanx}^{2} } \\ \frac{1 + 2 { \sin(x) }^{2} }{1 + 3\frac{ {sin(x)}^{2} }{ { \cos(x) }^{2} } } \\ \frac{( { \cos(x) }^{2})(1 +2 { \sin(x) }^{2} }{ { \cos(x) }^{2} + 3 { \sin(x) }^{2} } \\ \frac{( { \cos(x) }^{2}(1 + 2 sin(x) ^{2} ) }{1 + 2 { \sin(x) }^{2} } \\ { \cos(x) }^{2}$