Question

1. If 13sind=12, Find coseco​

Answer 1

GIVEN :

• ${:}\longrightarrow \sf 13sinD=12$

TO FIND :

• ${:}\longrightarrow \sf CosecD$

S O L U T I O N :-

${:}\longrightarrow \sf 13sinD=12$

${:}\longrightarrow$$\sf sinD={\dfrac {12}{13}}$

• We know that ,

${:}\longrightarrow \sf cosec\theta={\dfrac {1}{sin\theta}}$

• Substitute the values :

${:}\longrightarrow \sf CosecD={\dfrac {1}{sinD}}$

${:}\longrightarrow \sf CosecD={\dfrac{1}{\dfrac {12}{13}}}$

${:}\longrightarrow \underline{\boxed {\bf cosecD=\dfrac {13}{12}}}$