
Yefim S. answered 07/20/21
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a·b = IaI·IbIcosφ = 6·1·cosπ/4 = 3√2.
Anna G.
asked 07/20/21Find 𝐚⋅𝐛 a ⋅ b if |𝐚|=6 | a | = 6 , |𝐛|=1 | b | = 1 , and the angle between 𝐚 a and 𝐛 b is 𝜋/4 π / 4 .
Yefim S. answered 07/20/21
Math Tutor with Experience
a·b = IaI·IbIcosφ = 6·1·cosπ/4 = 3√2.
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