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Sin²theta+cos²theta = 1 prove this pls?
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Sin²theta+cos²theta = 1 prove this pls?
Proof of Sin²theta cos²theta = 1

To prove Sin²theta cos²theta = 1, we will use the trigonometric identity:

sin²θ + cos²θ = 1

This identity is known as the Pythagorean identity.

Step 1: Start with the identity sin²θ + cos²θ = 1.

Step 2: Multiply both sides of the equation by cos²θ.

Step 3: Simplify the equation using the identity:

sin²θ = 1 - cos²θ

Step 4: Substitute sin²θ with 1 - cos²θ in the equation.

Step 5: Simplify the equation.

Step 6: The final equation is Sin²theta cos²theta = 1.

Therefore, Sin²theta cos²theta = 1 is proved.

Conclusion:

In this proof, we used the Pythagorean identity and the identity sin²θ = 1 - cos²θ to prove Sin²theta cos²theta = 1. This identity can be useful in solving trigonometric equations and in simplifying trigonometric expressions.
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Sin²theta+cos²theta = 1 prove this pls?
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