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How to solve sin²30 -cos²45+4tan²60

Answer»

Answer:

11.75

EXPLANATION:

(1/2)^2 - (1/√2)^2 + 4×(√3)^2

1/4 - 1/2+ 4 × 3

1/4 - 1/2 + 12

= 11.75



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