Question

pls slove this question​

Answer 1

I don't know not interested maths

Answer 2

Given p(x) = 5/6 + 3/4 x² + 1/2 x⁴

q (x) = 5 + 3x³ + 7x⁶

p(x) . q(x) = 25/6 + 5/2 x³ + 35/6 x⁶ + 15/4 x² + 9/4 x⁵ + 21/4 x⁸ + 5/2 x⁴ + 3/2 x⁷ + 7/2 x¹⁰

Co-efficient of x⁷ = 3/2

Co-efficient of x⁶ = 35/6

Co-efficient of x⁵ = 9/4

Co-efficient of x⁴ = 5/2

Sum of the co-efficient's of x⁷, x⁶, x⁵ and x⁴ = 3/2 + 35/6 + 9/4 + 5/2

                                                                        = 145/12

145/12 = 12.08333 which is in between 12 and 13.

So, your answer is last option.