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Trignomerty Question

+5

717

2

+286

If $cos\theta= \frac{5}{13}$ and $0<\theta <\frac{\pi}{2}$ . Then what is the value of $cos\theta + 5cot\theta\div csc\theta - cos\theta$ ?

buubleman Nov 29, 2015

Best Answer

+118703

+15

Hi Buubleman :)

Draw a right angled triange.

put theta in one of the acute angles.

cos theta = 5/13

So adjacent side is 5 and the hypotenuse is 13

Us pythagotean theorum to find the opposite side and it is 12

now you should be able find all the rations and put them together as you hve been asked :)

Melody Nov 29, 2015

2⁺¹ Answers

+118703

+15

Best Answer

Hi Buubleman :)

Draw a right angled triange.

put theta in one of the acute angles.

cos theta = 5/13

So adjacent side is 5 and the hypotenuse is 13

Us pythagotean theorum to find the opposite side and it is 12

now you should be able find all the rations and put them together as you hve been asked :)

Melody Nov 29, 2015

+286

+10

Thanks, i think i figured the answear aready! But i was unsure.

buubleman Nov 29, 2015

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