If sina+cosa=√2 then find the value of sina-cosa
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sin a + cos a = root 2
sin a = root 2 - cos a
Now rationalising the denominator ,
sin a = root 2 - cos a * root 2 + cos a / root 2 + cos a
sin a = 2 - cos ^ 2/ root 2 + cos a
then further solve
sin a = root 2 - cos a
Now rationalising the denominator ,
sin a = root 2 - cos a * root 2 + cos a / root 2 + cos a
sin a = 2 - cos ^ 2/ root 2 + cos a
then further solve
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