For positive acute angles A
A and
B
,
B, it is known that
cos
⁡
A
=
24
25
cosA=
25
24
​
and
tan
⁡
B
=
11
60
.
tanB=
60
11
​
. Find the value of
cos
⁡
(
A
−
B
)
cos(A−B) in simplest form.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

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