Hi, can someone show me how to prove that sin A + cos A = (the square root of 2) sin ( A + pi over 4) ? Thanks, any help would be very much appreciated!
Follow Math Help Forum on Facebook and Google+
now use where
Hello, sammysparrow! Multiply the left side by . . .[1] Note that: . Then [1] becomes: .
Originally Posted by sammysparrow Hi, can someone show me how to prove that sin A + cos A = (the square root of 2) sin ( A + pi over 4) ? Thanks, any help would be very much appreciated! If you had to begin from the LHS, another way is
Thanks everyone!
View Tag Cloud