Math, asked by KHUSHI1234567890, 1 year ago

PLZZZ ANSWER THE QUESTION... PLZZZ WITH SOLUTION...

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Answered by kunal0912
2
cos²45 - cos²30 = x*Cos45*Sin45

By Putting values from Trigonometric table

(√2/2)² - (√3/2)² = x*1/√2*1/√2
 
 so, 2/4 - 3/4 = x*1/2
 so,     -1/4 = x*1/2
       so, x = -2/4 = -1/2


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