Question

tan203+tan22+tan203tan22​

Answer 1

Answer:

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Answer 2

Answer:

1

Step-by-step explanation:

tan225 = tan(203 + 22) = $\frac{tan203 + tan 22}{1 - tan203.tan22}$ =tan(180 + 45) = 1

tan225 can be also written as [tan(180 + 45)] which is equal to tan45 = 1

therefore; 1- tan203.tan22 = tan203 + tan22

so, tan203 + tan22 + tan203.tan22 = 1        (Hence Proved)

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