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Without using trigonometric tables, prove that:
cos²57° – sin²33° = 1​

By Amara

Without using trigonometric tables, prove that:
cos²57° – sin²33° = 1​

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Amara


[tex] \frac{9x – 7}{3x + 5} = \frac{3x – 4}{x + 6} [/tex]
please solve this
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what do you think is the reason behind the protest in nepal during the period 1922-2006 ? what was the result of the protest ?​

1 thought on “Without using trigonometric tables, prove that: <br />cos²57° – sin²33° = 1​”

  1. Step-by-step explanation:

    cos²A=1-sin²A. cos² 57 +1- sin² 33=1. cos² 57-sin²33=0. sin²33-sin²33=0. 0 =0. HENCE PROVED…. HOPE IT’S HELPFUL.

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