By Kenneth Munson

ISBN-10: 0713706961

ISBN-13: 9780713706963

Out of print.

Decent, easy part and most sensible photographs of airliners and gives simple information approximately eighty outfitted among 1946 and the mid 1960s.

Price used to be correct and located information i needed.

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**Extra resources for Airliners Since 1946 (The Pocket encyclopaedia of world aircraft in colour)**

**Example text**

Simpler cases with n equal to 1, 0 or -1 are summarized in the table on the right. tan x = n General case An equation of the form tanx = n has solutions for any real n. To find them we must first find an angle α such that: After finding α, the solutions for x are: When n equals 1, 0 or -1 the solutions have simpler forms which are shown in the table on the right. cot x = n General case The equation cotx = n has solutions for any real n. To find them we must first find an angle α such that: After finding α, the solutions for x are: When n equals 1, 0 or -1 the solutions have simpler forms which are shown in the table on the right.

71828183 To calculate cos(θ), we would apply the formula: 2*cos(θ) = = + = => cos(θ) = e(iθ)+e(-iθ) 1 + iθ - θ**2/2 - iθ**3/6 + θ**4/24 + ... 1 +-iθ - θ**2/2 --iθ**3/6 + θ**4/24 + ... 2 -2θ**2/2 +2θ**4/24 + ... 1 - θ**2/2 + θ**4/24 + ... )+ ... in which the odd terms cancel out and the even terms double and alternate in sign. Substituting -θ for θ does not change the result as θ occurs with even powers, hence the earlier phrase that cos() is an even function. Using the Taylor series to calculate π Having calculated, e and cos(), lets see if we can calculate π.

To summarize what we know so far: cos(θ) = e(iθ)/2 + e(-iθ)/2 where θ is in radians and i is a square root of -1. Replacing θ by -θ gives conversly: cos(-θ) = e(-iθ)/2 + e(iθ)/2, the same formula, so we must have that cos(θ) = cos(-θ). Given: cos(θ) = e(iθ)/2 + e(-iθ)/2 We can find the rate of change with θ of both sides to fined the sin() in terms of e() => -sin(θ) sin(θ) = = i+e( iθ)/2 - i*e(-iθ)/2 i*e(-iθ)/2 - i*e( iθ)/2 Substituting -θ for θ gives: sin(-θ) = i*e(iθ)/2 - i*e(-iθ)/2 = -sin(θ) thus sin() is an odd function, compare this to cos() which is an even function because cos(θ) = cos(-θ).

### Airliners Since 1946 (The Pocket encyclopaedia of world aircraft in colour) by Kenneth Munson

by Kenneth

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