Find the exact value of the given expression.
sin(2cos^-1(5/13))

+120/169 or -120/169

Step-by-step explanation:

where, alpha is some angle that satisfies the assumed condition.

[ taking cos to the other side  or applying cos on both sides]

as sin =  

[by general trigonometry formula: ]

so if  , we can get sin from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

[by general trigonometry formula]

so, the final value can be 120/169 or -120/169.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

hello, sorry being so rude after all that fighting i found it kind of funny, so as me saying sorry here is an answer!

since the table showed her that   2km = 2000m.

to determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

similarly, for 8000m = 8000 / 1000 = 8 km

cheers to savings

~

your pal papaguy