Math, asked by reemkazi, 1 year ago

if 5 sec ϴ - 12 cosec ϴ=0 find the values of sec ϴ cos ϴ and sin ϴ

Answers

Answered by abhi569
63
5 secФ - 12 cosecФ = 0 

5 secФ = 12 cosecФ

 \frac{5}{12}  =  \frac{cosec}{sec}

 \frac{5}{12}  =  \frac{ \frac{hypotenuse}{perpendicular} }{ \frac{hypotenuse}{base} }

 \frac{5}{12} =  \frac{ \frac{1}{perpendicular} }{ \frac{1}{base} }


 \frac{5}{12} =  \frac{1}{perpendicular}  × \frac{base}{1}


 \frac{5}{12} =  \frac{base}{perpendicular}



Now,
Let base be  5x 
perpendicular  be 12x 

             By Pythagoras Theorem,


(5x)^2 + (12x)^2 = (hypotenuse)^2

25x^2 + 144x^2 = (hypotenuse)^2

169x^2 = (hypotenuse)^2

 \sqrt{169x^2} = hypotenuse

 \sqrt{(13x)^2} = hypotenuse

13x = hypotenuse 


______________________


             Then,


secФ = \frac{hypotenuse}{base} =  \frac{13x}{5x} =  \frac{13}{5}

cosФ =  \frac{1}{sec} =  \frac{5}{13}

sin Ф =  \frac{perpendicular}{hypotenuse} =  \frac{12x}{13x} =  \frac{12}{13}




i hope this will help you



-by ABHAY





abhi569: (-:
Anonymous: Very nyc explanation
abhi569: Thanks
Anonymous: mention not
Answered by darklord23
15

Answer:

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