1.

Find the value of sin square 45-cos square 45​

Answer»

SIN ²45 - cos²45

So USING the TRIGONOMETRY table

Sin 45 = 1/√2

cos 45 = 1/√2

putting the value :-

(1/√2)²-(1/√2)²

(1/2)-(1/2)

= 1

so the answer is 1

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