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Algebra problems 30 to 39 |  |
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to problems 21 to 30
to problems 40 to 4930.
Solve x if :
6x = 32x - 22x
31.
Prove that
-
tan(10) + tan(20) + tan(50) = tan(60)
32.
"als" = "if"
"bereken" = "calculate"
33.
Calculate (without calculator) x if
34.
Given is:
a + b + c + d = 4
ab + ac + ad + bc + bd + cd = -7
Calculate:
a2 + b2 + c2 + d2
35.
Find values for x and y which satisfy:
36.
Calculate using pencil and paper:
37.
Find P(x) if P(x+1) - P(x) = x
38.
Given:
Calculate
39.
Given:
Calculate:
