cos 22° + cos 78° + cos 80° =
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Step-by-step explanation:
bro yahi answer ha 1.307
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2
given,
cos 22° + cos 78° + cos 80° = ?
Solution:
cos 22°=0.92718...
cos 78°=0.20791....
cos 80°=0.17364..
cos 22° + cos 78° + cos 80° =0.92718+0.20791+0.17364
=1.30874....
Hence, the answer is =1.30874....
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