Question

find sin74° by using sin(a+b)=sinA.sinB+cosA.sinB​

Answer 1

Answer:

Here we have to find the values of the given trigonometric ratios using the given trigonometric identities. We can find the trigonometric ratios using the sine and cosine table. Sine and cosine table gives us the trigonometric values at different angles. Trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables where both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.