Question 25

ΔPQR is right angled at Q. If cosP = 5/13, then what is the value of cosecR ?

Solution

Given : $$\cos P$$ = $$\frac{5}{13}$$

Also, $$\cos P=\frac{PQ}{PR}=\frac{5}{13}$$

Let PQ = 5 cm and PR = 13 cm

To find : $$\cosec R=\frac{PR}{PQ}$$

= $$\frac{13}{5}$$

=> Ans - (A)

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