Prove the identity
1. cot²x= csc²x-1

2. sin x tan x= sec x - cos x

The lee family bought their home for $220,000 this year. the equation =220,000(1.038) v = 220 , 000 ( 1 . 038 ) x can be used to find the value, v, of their home after x years. which will be the value of the lee family's home in 5 years?

How do you solving the solution of each system using elimination?

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