Math, asked by DevilsixteenBDN, 1 year ago

plz help fast best answer will be mark as brainliest

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Answered by Martin84
2

Answer:

2

Step-by-step explanation:

 \frac{ \cos(35)  \csc(55) }{ \tan(5) \tan(25)  \tan(65) \tan(85)  \tan(45) }  +  \frac{ \cos(70) }{  \sin(20) }\\ we \: know \: that \\  \cos(90 - 55)  =  \sin(55)  \\  \tan(90 - 85)  =  \cot(85)  \\  \tan(90 - 65)  =  \cot(65)  \\  \sin(90 - 20)  =  \cos(20)  \\ we \: know \: that \:  \tan( \alpha )  \cot(  \alpha )  = 1 \\ on \: taking \: concidration \: above \: we \: get \\ 1 + 1 = 2

Answered by simi0412
1

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