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to the nearest minute.
from each side to two decimal places.
of the triangle to two decimal places.
exactly to two decimal places.
of the circumscribed circle the triangle.
and 
long. The point T should lie on the line AD so that 
. Let 
and 
.
, 
and 
. Express the vector 
. Prove that the vectors 
are perpendicular.
is equal to 3, calculate the values of x and y.
and 
and the vector 
;
with the components.
and 
write the vector 
as a combination of 
and 
.
and 
lie in the same plane?
and 
are given. Are the given vectors parallel?
and 
express vector 
as a linear combination.
and 
are given express vector 
as a linear combination.
