2cos(45°) + 4cos(60°)
Using the values of cosine for 45° and 60°:
cos(45°) = √2/2cos(60°) = 1/2
Substitute the values back into the equation:
2(√2/2) + 4(1/2)= √2 + 2
Therefore, 2cos(45°) + 4cos(60°) = √2 + 2.
2cos(45°) + 4cos(60°)
Using the values of cosine for 45° and 60°:
cos(45°) = √2/2
cos(60°) = 1/2
Substitute the values back into the equation:
2(√2/2) + 4(1/2)
= √2 + 2
Therefore, 2cos(45°) + 4cos(60°) = √2 + 2.