Question

solve for the value of "A" when sin A=3.5
X and Cos A=5.5x

Answer 1

is that sin-1 and cos-1? because when i do the value is different.....

Answer 2

tan A = sin A / cos A = 7/11

A = 32.47 degrees

Answer 3

i assume x = X

Answer 4

yes X

Answer 5

sorry for small letter sir what is A? -1?

Answer 6

no A = 32.47 degrees

Answer 7

how can i do that in my scientific calculator?

Answer 8

ok in mine (a casio) i press SHIFT, tan-1 then (7 / 11)

Answer 9

wew i get it so i will use ( ) <<< this when example tan -1

Answer 10

not all calculators are the same - consult your instruction book if u get into trouble

good luck

Answer 11

thank u