Math, asked by vaibhavigawas573, 1 day ago

The Value of sin²70°+sin²20°-2Cos²90°

Answers

Answered by amanraj56

2

Step-by-step explanation:

sin²70°+sin²20°-2Cos²90°

sin²70°+cos²(90-70)°-2Cos²90°

sin²70°+cos²70°-2Cos²90°

1-2×0

1-0

1

#666

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