1.

in 35°\? _ 1००8 55cos 55° sin 35°2) - 2०08 60 का मान है

Answer»

(sin35/cos55)²+(cos55/sin35)²-2cos60

=[cos(90-35)/cos55]²+[cos55cos(90-35)]²-2cos60

=(cos55/cos 55)²+(cos55/cos 55)²-2cos60

=1+1-2×1\2=1+1-1=1



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