Question

if Cos A + cos²A is equals to 1 then sin²A + sin²A is equals to​

Answer 1

Answer:

2sin²A is your answer dear.....

Answer 2

Answer:

▶Here's your answers

⏩Let theta be x ...

${ \sin(x) }^{2} + { \cos(x) }^{2} = 1$

${ \sin(x) }^{2} + { \sin(x) }^{2} \\ \\ = 1 - { \cos(x) }^{2} + (1 - { \cos(x) }^{2} ) \\ \\ = 2 - 2 { \cos(x) }^{2} \\ \\ = 2(1 - { \cos(x) }^{2} ) \\ \\ = 2 { \sin(x) }^{2}$

Hope it helps