Question

यदि cos43=a तो cos47 का मान a के पदो मे लिखे​

Answer 1

Hey

Here is your answer,

2x^2 +px+8=0

b^2-4ac=0

(P)^2 - 4x2x8=0

P^2-64=0

P^2=64

P=8

1. Hope it helps you!