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Suppose That ABCA B C Is a Right Triangle With ∠C=90∘\angle C = 90 ^ { \circ }

Question 25

Multiple Choice

Suppose that ABCA B C is a right triangle with ∠C=90∘\angle C = 90 ^ { \circ } . If AC=12A C = 12 and BC=6B C = 6 , find the quantities. cos⁡A,sin⁡A,tan⁡A,sec⁡B,csc⁡B,cot⁡B\cos A , \sin A , \tan A , \sec B , \csc B , \cot B .


A) cos⁡A=255\cos A = \frac { 2 \sqrt { 5 } } { 5 } , sec⁡B=5\sec B = 5 , tan⁡A=12\tan A = \frac { 1 } { 2 } , sin⁡A=55\sin A = \frac { \sqrt { 5 } } { 5 } , csc⁡B=15\csc B = \frac { 1 } { 5 } , cot⁡B=12\cot B = \frac { 1 } { 2 }
B) cos⁡A=255\cos A = \frac { 2 \sqrt { 5 } } { 5 } , sec⁡B=5\sec B = \sqrt { 5 } , tan⁡A=2\tan A = 2 , sin⁡A=55\sin A = \frac { \sqrt { 5 } } { 5 } , csc⁡B=52\csc B = \frac { \sqrt { 5 } } { 2 } , cot⁡B=12\cot B = \frac { 1 } { 2 }
C) cos⁡A=255\cos A = \frac { 2 \sqrt { 5 } } { 5 } , sec⁡B=52\sec B = \frac { \sqrt { 5 } } { 2 } , tan⁡A=12\tan A = \frac { 1 } { 2 } , sin⁡A=55\sin A = \frac { \sqrt { 5 } } { 5 } , csc⁡B=5\csc B = \sqrt { 5 } , cot⁡B=2\cot B = 2
D) cos⁡A=255\cos A = \frac { 2 \sqrt { 5 } } { 5 } , sec⁡B=5\sec B = \sqrt { 5 } , tan⁡A=12\tan A = \frac { 1 } { 2 } , sin⁡A=55\sin A = \frac { \sqrt { 5 } } { 5 } , csc⁡B=52\csc B = \frac { \sqrt { 5 } } { 2 } , cot⁡B=12\cot B = \frac { 1 } { 2 }
E) cos⁡A=255\cos A = \frac { 2 \sqrt { 5 } } { 5 } , sec⁡B=5\sec B = \sqrt { 5 } , tan⁡A=12\tan A = \frac { 1 } { 2 } , sin⁡A=55\sin A = \frac { \sqrt { 5 } } { 5 } , csc⁡B=52\csc B = \frac { \sqrt { 5 } } { 2 } , cot⁡B=2\cot B = 2

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