Question

(Sin a-cos a)²+(cas a- sin a)²=​

Answer 1

Hi mate

Here is ur answer...

(sin a - cos a )² + (cos a - sin a )²

= sin²a + cos²a - 2 sin a cos a + cos²a + sin²a - 2 sina cosa

= 1 + 1 - 4 sin a cos a

= 2 - 4 sin a cos a

= 2 [ 1 - 2 sin a cos a]

Hope this will help you ...

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Answer 2

Answer:

2

Step-by-step explanation:

(sin²a+cos²a-2sin a cos a)+(cos²a+sin²a-2cos a sin a).

(1-2sin a cos a)+(1-2sin a cos a)

(1-2sin a cos a + 1-2sin a cos a)

1+1

2 Answer