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did u get the process of doing it korcan?

well thanky you , but I found the answer as sinx= 1/3√5, and whats the meaning of arc?

I don2T know if my answer is true.

14yrs old?

that makes you like yr9 , this is a yr11/12 question

mark o. you did it wrong , they want an exact value for it

you need to use double angle expansion

YEa i am 14 years old and i learned trgionometry and function when i was 12 ^^

\[\tan(2x) = \frac{2\tan(x)}{1-\tan^2(x)} \]

mhmh just have a look at my answer mybe?

and check it please?

im sure you can use a table of trig fuctions?..lol

did you get it korcan?

you can ask question if you are not sure so that we can explain to you better..lol