Question : Let ABC be a triangle right-angled at B. If $\tan A = \frac{12}{5}$, then find the values of $\operatorname{cosec A}$ and $\sec A$, respectively.
Option 1: $\frac{13}{10}, \frac{5}{13}$
Option 2: $\frac{13}{12},\frac{13}{5}$
Option 3: $\frac{10}{13}, \frac{5}{13}$
Option 4: $\frac{12}{13}, \frac{5}{13}$
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Correct Answer: $\frac{13}{12},\frac{13}{5}$
Solution : Given, $\tan A=\frac{12}{5}$ $\tan A = \frac{\text{perpendicular}}{\text{base}}$ Using pythagoras theorem, $\small\text{Hypotenuse}^2=\text{Base}^2+\text{Perpendicular}^2$ ⇒ $h^2=5^2+12^2$ ⇒ $h^2=25+144$ ⇒ $h^2=169$ ⇒ $h=13$ $\therefore$ $\operatorname{cosec A}=\frac{\text{Hypotenuse}}{\text{Perpendicular}}=\frac{13}{12}$ And, $\sec A=\frac{\text{Hypotenuse}}{\text{Base}}=\frac{13}{5}$ Hence, the correct answer is $\frac{13}{12},\frac{13}{5}$.
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Question : If in a right-angled $\triangle P Q R$, $\tan Q=\frac{5}{12}$, then what is the value of $\cos Q$?
Option 1: $\frac{12}{5}$
Option 2: $\frac{13}{5}$
Option 3: $\frac{12}{13}$
Option 4: $\frac{5}{13}$
Question : $\triangle PQR$ is a right-angled triangle. $\angle Q = 90^\circ$, PQ = 12 cm, and QR = 5 cm. What is the value of $\operatorname{cosec}P+\sec R$?
Option 1: $\frac{26}{5}$
Option 3: $\frac{18}{5}$
Option 4: $\frac{14}{5}$
Question : $\triangle PQR$ is right angled at Q. If PQ = 12 cm and PR = 13 cm, find $\tan P+\cot R$.
Option 1: $\frac{9}{10}$
Option 2: $0$
Option 3: $\frac{10}{12}$
Option 4: $\frac{12}{10}$
Question : $\triangle$XYZ is right angled at Y. If $\cos X=\frac{3}{5}$, then what is the value of $\operatorname{cosec}Z$?
Option 1: $\frac{3}{4}$
Option 2: $\frac{5}{3}$
Option 3: $\frac{4}{5}$
Option 4: $\frac{4}{3}$
Question : If $\sec \theta+\tan \theta=5$, then $\operatorname{sin} \theta=$________.
Option 1: $0$
Option 2: $\frac{13}{12}$
Option 4: $\frac{1}{5}$
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