1.

दे. हि Oz pod_dns volis Sf - T Cc) Qउड़ान के रह.

Answer»

sinA = 12/13cosA = √(1- sin^2 A) = √(1- 144/169) = 5/13

(sinA - cos^2 A)/(2sinA - cosA)= (12/13 - 25/169)/(24/13 - 5/13)=(131/169)/(19/13)=131/247



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