What is the missing step and reason? tan(x) + tan(x)
1-tan(x) tan(x)'
tangent double angle identity
tan(x) + tan(x)
1-tan(x) tan(x)
r; tangent sum identity
tan(x) + tan(x)
1+tan(x) tan(x): tangent double angle identity
tan(x) +tan(x)
1+tan(x) tan(x)
tangent sum identity

Np4=12np2 with clear explanation.

Determine the quotient and remainder when (6a3)+11a2-4a-9) is divided by (3a-2) express your answer in the form q(a) + r(a)/d(a)

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?