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acute angle of elevation base building called CHAPTER characteristic Check circle colog column comp compute corresponding cos x cosc cosh cosy cotangent Cotg curve decimal difference divide equal equator EXAMPLES EXERCISES Express figures Find the angle Find the distance Find the height foot formulas FOUR-PLACE Given gives greater Hence hill hyperbolic increase latitude length light-house limit log cot log sin logarithm mantissa measured miles minutes negative observed obtain opposite perpendicular plane pole positive Prove pseudo-sphere quadrant radians radius regular remaining represented Required respectively result right angle right triangle root sides sin x sine sinh siny solution solved sphere spherical triangle ABC TABLE taken tanc Tang tangent tany terminal line tower tree TRIGONOMETRIC FUNCTIONS written yards ΙΟ
Página 21 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.
Página 8 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Página 3 - The sine of an angle is equal to the sine of its supplement. The sine rule Consider fig.
Página 10 - Root of a Number: Divide the logarithm of the number by the index of the root ; the quotient is the logarithm of the required root of the number.
Página 11 - Hence, all numbers that differ only in the position of the decimal point have the same significant part. For example, .002103...
Página 6 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.