A student is asked to calculate the Pythagorean Triples for the number 13 using the identity (x2 - y2)2 + (2xy)2 = (x2 + y2)2. The student's steps are shown below. (See photo for more info)
*will mark brainliest*

2 x 503

step-by-step explanation:

its 1006

3 qrs + 3/2 xy hope this : /

step-by-step explanation:

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.