Find sec 15/ cosec 75 + sin 72/ cos 18 - tan 38/ cot 57
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Step-by-step explanation:
Sec15/Sec74 + Sin 72/cos 18 - tan33/cot 57
sec15/Sec74 + sin72/cos(90-18) - tan 33/ cot(90-57)
sec15/sec 74 + sin72/sin72 - tan 33/tan 33
sec 15/sec 74 +1-1
sec 15/sec 74
The question is wrong...bcz the 1st's down portion should be cosec75.
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