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Trigonometric Identities

question 1 of 2 Grade: Ten - G10

Q: Simplify: sin²x + cos²x

Did You Know?

Solve by substitution: x = y+1 → 2(y+1)+y=5 → 3y+2=5 → y=1 → x=2. Example: x+y=3, x-y=1 → x=2, y=1.

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Did You Know?

Solve by substitution: x = y+1 → 2(y+1)+y=5 → 3y+2=5 → y=1 → x=2. Example: x+y=3, x-y=1 → x=2, y=1.

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