Question

5) find the value of i) sin^2 90° + cos^2 90° ​

Answer 1

Answer:

1

Step-by-step explanation:

we know that ,

sin^2theta + cos^2theta =1

here theta is 90 in both

hence the answer becomes 1

Answer 2

Answer:

its 1

Step-by-step explanation:

you can use the identity

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

or you can substitute

sin 90= 1 and cos 90=0