Question

Sin 53 degree cos 37 degree+cos 53 degree sin 37 degree=1

Answer 1

Answer:

Sin90=1

Step-by-step explanation:

sinAcosB+cosAsinB=sin(A+B)

sin53cos37+cos53sin37=sin(53+37)

sin(90)=1

Answer 2

Answer:

thanku

Step-by-step explanation:

sin 53 = 4/5     cos 53 =3/5

cos 37= 3/5      sin 37=4/5

therefore.,    ( 4/5 ) (4/5 ) + (3/5) (3/5) = 1