Basic Mathematics for RadioPrentice-Hall, 1948 - 339 σελίδες |
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Σελίδα 42
... direction , for example -4 amperes or +4 amperes . When no sign stands before a number , the plus sign is always under- stood . The minus sign is never omitted . In radio work , when the sign is of no importance and only the absolute ...
... direction , for example -4 amperes or +4 amperes . When no sign stands before a number , the plus sign is always under- stood . The minus sign is never omitted . In radio work , when the sign is of no importance and only the absolute ...
Σελίδα 43
... direction , and an answer of -3 amperes means the same amount of current flow but in an opposite direction . If the direction is of no importance , it is customary to write the number in the form [ 3 ] , the parallel vertical lines ...
... direction , and an answer of -3 amperes means the same amount of current flow but in an opposite direction . If the direction is of no importance , it is customary to write the number in the form [ 3 ] , the parallel vertical lines ...
Σελίδα 44
... direction ( that is , in the direction opposite to that indicated by the sign + before 1 ) , and is ( +2 ) . 2. The result of subtracting ( −1 ) from ( +3 ) is found by counting from ( +3 ) one unit in the positive direction , and is ...
... direction ( that is , in the direction opposite to that indicated by the sign + before 1 ) , and is ( +2 ) . 2. The result of subtracting ( −1 ) from ( +3 ) is found by counting from ( +3 ) one unit in the positive direction , and is ...
Περιεχόμενα
CHAPTER PAGE 1 ADDITION SUBTRACTION MULTIPLICATION AND DIVISION IN ARITHMETIC | 3 |
DEFINITIONS AND SYMBOLS | 12 |
INVOLUTION AND EVOLUTION IN ARITHMETIC | 15 |
Πνευματικά δικαιώματα | |
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Συχνά εμφανιζόμενοι όροι και φράσεις
a-c circuit adjacent angles algebraic amperes answer arithmetic Axiom base bisector called central angle Chapter Check chord circle circumference coefficient complex numbers congruent Construct COROLLARY cosine curve decibel decimal point denominator diameter distance divided division divisor Draw engineering equation EXAMPLES exponent expression factors figure formula fraction functions geometry given inches inscribed interior angles intersecting isosceles length logarithms magnitude mathematical measure monomial Multiply negative number nth root obtained Ohm's law ohms parallel parallelogram perpendicular polygon polynomial positive Postulate problems Prove Pythagorean theorem quadratic quantity quotient radians radio radius ratio regular polygon represent resistance right angle right triangle rotation Simplify sine wave slide rule solution Solve square root Statement straight line subtract surds tangent Theorem triangle ABC trigonometric functions trigonometry unit velocity vertex vertical voltage volts zero