- Home
- Standard 10
- Mathematics
8. Introduction to Trigonometry
easy
$\sin 2 A =2 \sin A$ तब सत्य होता है, जबकि $A$ बराबर है :
A
$60^{\circ}$
B
$30^{\circ}$
C
$45^{\circ}$
D
$0^{\circ}$
Solution
Out of the given alternatives, only $A =0^{\circ}$ is correct.
As $\sin 2 A=\sin 0^{\circ}=0$
$2 \sin A=2 \sin 0^{\circ}=2(0)=0$
Standard 10
Mathematics