Asked by Victoria
Evaluate sin(29 degrees)cos(31 degrees) + cos(29 degrees)sin(31 degrees) exactly, without using a calculator.
Answers
Answered by
Victoria
sqrt(3)/2
Answered by
MathMate
Correct!
sin(a)cos(b)+cos(a)sin(b)
=sin(a+b)
Let a=29°, b=31°
so the expression represents sin(60°)=(√3)/2
sin(a)cos(b)+cos(a)sin(b)
=sin(a+b)
Let a=29°, b=31°
so the expression represents sin(60°)=(√3)/2
Answered by
Kalyani Walde
Sir, i can't understand anything please solve again 😅😅 please solve again sir I request you.🙏😖