Is the number below a perfect square how do you know 2 x 2 x 3 x 5 x 5
1 answer:
You might be interested in
Answer:
see explanation
Step-by-step explanation:
Using the cosine and tangent trigonometric ratios and the exact values
cos30° = and tan30° =
, then
cos30° = =
=
( cross- multiply )
× m = 12 ( divide both sides by
)
m = ← rationalise by multiplying numerator/ denominator by
)
m = ×
=
= 4
-------------------------------------------------------------------------------
tan30° = =
=
( cross- multiply )
× n = 6 ( divide both sides by
)
n = ← rationalise the denominator
n = ×
=
= 2
-----------------------------------------------------------------------------------