Sin25÷cos65+cosec34÷sec56-2cos43*cosec47÷tan10*tan40*tan50*tan80
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Answered by
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Answer:
0
Step-by-step explanation:
sin 25 =sin(90-65)=cos 65 ................ 1
cosec 34 =cosec(90-56)=sec 56........2
cosec 47=cosec (90-43) =sec 43.......3
tan 10=tan(90-80) =cot 80..................4
tan 40=tan (90-50) =cot 50..................5
Using 1
cos 65÷cos 65=1
Using 2
sec 56÷sec 56=1
Using 3
2*cos 43*sec 43=2
Using 4
cot 80*tan 80=1
Using 5
cot 50*tan 50=1
Adding together:
(1+1)-2 ÷1*1=0
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thank you for the answer
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