Question

Sin 20° cos 40°+ cos2o° sin 40° =​

Answer 1

Answer:

√3/2

Step-by-step explanation:

sin 20° cos 40° + cos 20° sin 40°

here I am using formula

sinA cosB + cosA sinB = sin(A + B)

so, A = 20° and B = 40°

sin(20° + 40°)

sin(60°)

√3/2 ( sin60° = √3/2)

please mark on brainliest please

Answer 2

Here is your answer:

Answer:

√3/2

Step-by-step explanation:

Sin 20° Cos 40° + Cos 20° Sin 40°

Sin ( 20° + 40° ) = Sin 60°

= √3/2

Hence LHS = RHS

Hope you like it