Question

sin43 cos47 +cos43 sin47 =1.prove this​

Answer 1

Step-by-step explanation:

sinacosb+cosasinb=sin(a+b)

sin(47+43)=sin90°=1

Answer 2

Answer:

Proved

Step-by-step explanation:

Given that-

sin43 cos47 + cos43 sin 47

Using formula-

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

So, sin43 cos47 + cos43 sin 47

= sin(43+47)

= sin(90)

= 1

Hence L.H.S. = R.H.S.