prove that sin 105 degree + cos 105 degree equal to one by root
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sin105=sin (60+45)
cos105=cos(60+45)
now kept in formula of sin (a+b)
and cos (a+b)
after putting in formula. kept there value. U will get ur answer
cos105=cos(60+45)
now kept in formula of sin (a+b)
and cos (a+b)
after putting in formula. kept there value. U will get ur answer
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