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8. Introduction to Trigonometry
easy
કિંમત શોધો :
$\operatorname{cosec} 31^{\circ}-\sec 59^{\circ}$
A
$1$
B
$0$
C
$-1$
D
$0.5$
Solution
$\operatorname{cosec} 31^{\circ}-\sec 59^{\circ}=\operatorname{cosec}\left(90^{\circ}-59^{\circ}\right)-\sec 59^{\circ}$
$=\sec 59^{\circ}-\sec 59^{\circ}$
$=0$
Standard 10
Mathematics