Question

38. The difference of the place values 47.
of two 7's in the number 178.6758
1) 69.3
2) 69.93
3) 70.07 4) 70.93
​

Answer 1

Answer:

⁶l

Step-by-step explanation:

On changing into sin and cos, we get

LHS cos(A−B)cos(A+B)sin(A+B)sin(A−B)=cos2A−sin2Asin2A−sin2B