Question

Find the value of sin 35 cos55 +cos35 sin55

Answer 1

Step-by-step explanation:

sin(a+b) use formula

sin(35+55)= sin90 then 1

Answer 2

Answer:

1

Step-by-step explanation:

sin 35° × sin (90-55)°+ cos 35°×cos (90-55)°

sin35×sin35+ cos 35× cos 35

sin^2 35+cos^2 35

using sin^2 A+ cos^2 A=1

=1

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