sin55× cot55×cot35 ×sec35 = 1
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Step-by-step explanation:
sin55× cot55×cot35 ×sec35 = 1
LHS
sin55× cot55×cot35 ×sec35
sin55×cot55×cot(90-55) ×sec(90-55)
sin55×cot55×tan55×cosec55
sin55×(1/tan55)×tan55×(1/sin55)
1
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