द वैल्यू ऑफ स्क्वायर 45 डिग्री माइनस कौस स्क्वायर 30 डिग्री इज
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the value of...
sin²45*-cos²30*=(1/√2)²-(√3/2)²
=(1/2) - (3/4)
= —1/4.....
sin45*=1/√2,cos30=√3/2
hope this helps you Plzzz mark as brainalist answer...!
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