Question

find the value of (sintita +castita)² +(castita-sintita)²​

Answer 1

Answer:

We know that. Sin² ( x ) + Cos ² ( x ) = 1

Cos ² ( x ) = 1 - Sin² ( x )

Cos ( x ) = √ { 1 - Sin² ( x ) }

Sin ( x ) = 7 / 5

Sin² ( x ) = 49 / 25

=>

Cos ( x ) = √ { 1 - 49 / 25 }

Cos ( x ) = √ ( -24 / 25 )

Cos ( x ) = √( -24 ) / 5

Cos ( x ) = √24 i / 5

Where i is iota i = √ -1

Read more on Brainly.in - https://brainly.in/question/7965324#readmore

Answer 2

Answer:

i think it would be helpful