Question

tan^2 60 degree + 4cos^2 45 degree + 3sec^2 30 degree + 5cos^2 90 degree​

Answer 1

Answer:

9

Step-by-step explanation:

=tan^2 60°+4cos^2 45°+ 3sec^2 30°+ 5cos^2 90°

=(√3)^2 + 4(1/√2)^2 + 3(2/√3)^2 + 5(0)^2

=3+4×1/2+3×4/3+0

=3+2+4+0

=9 ans

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