nbnb8115 nbnb8115 08-04-2024 Mathematics contestada Which of the following expressions is equal to ∑²⁰ₖ₌₅3ᵏ ?a. 3⁵∑¹⁵ₖ₌₀3ᵏb. 3⁵∑²⁰ ₖ₌₅ 3ᵏ⁻⁵c. 3⁻⁵∑¹⁵ₖ₌₀3ᵏd. 3⁵∑¹⁵ₖ₌₀ 3ᵏ⁺⁵k