Question

(cos0°+sin30°+sin45°)(sin90°+cos60°-cos45°)=?
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Answer 1

$(cos0o+sin45o+sin30o)(sin90o−cos45o+cos60o)</p><p></p><p></p><p> =(1+21+21)(1−21+21)</p><p></p><p></p><p> =(1+21+21)(1+21−21)</p><p></p><p></p><p> =(23+21)(23−21)</p><p></p><p></p><p> =(23)2−(21)2</p><p></p><p></p><p> =49−21=47</p><p></p><p></p><p>$

$this \: is \: your \: answer$

Answer 2

Answer:

the answer is 1.75 or 7/4