Question

8 Sin² - 7 Sino + √3 Coso =0 0​

Answer 1

Answer:

We know, sin0°=0,cos0°=1,sin10°=0.1936cos10°=0.9848

                sin20°=0.3420,cos20°=0.9397

At θ=0,

⇒f(θ)=  

3

​  

>0

At θ=20°

⇒f(θ)=−0.44647<0

∴ One root lies between 10°&20°.

Hence, the answer is 10°&20°.