Solve the simultaneous equations a xy 64 log x y 2 b 2 x 4 y 2lg y lg x lg 5 c log 4 (x y) 2 log 4 x log 4 y log 4 3 log 4 x d xy 640 2 log 10 x log 10 y 2 e log 10 a 2 log 10 b log 10 (2a b) 1 f 4 xy 2 x 5 log 2 y log 2 x 1 ...

a xy 64 and logx y 2 from the first equation we know that x2 64 from the second equation we know tha ...

Solve the simultaneous equations. a. xy = 64 log x y = 2 b. 2 x =

Question:

Solve the simultaneous equations.

a. xy = 64

log_xy = 2

b. 2^x = 4^y

2lg y = lg x + lg 5

c. log₄(x + y) = 2 log₄ x

log₄ y = log₄ 3 + log₄ x

d. xy = 640

2 log₁₀ x – log₁₀ y = 2

e. log₁₀ a = 2 log₁₀ b

log₁₀ (2a – b) = 1

f. 4^xy = 2^x+5

log₂ y – log₂ x = 1

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

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Solve the simultaneous equations. a. xy = 64 log x y = 2 b. 2 x =

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

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