Question

sin70+cos40/cos70+sin40

Answer 1

sin 70 + cos 40 / cos 70 + sin 40 

= sin 70 + cos ( 90 - 50 )   /  cos 70 + sin (90 - 50)
= sin 70 + sin 50   /   cos 70 + cos 50 
= sin ( 60 + 10 ) + sin ( 60 - 10)   /   cos ( 60 +10 ) + cos ( 60 - 10 )
= sin 60 + sin 10 + sin 60 - sin 10   /   cos 60 + cos 10 + cos 60 - cos 10
= sin 60 + sin 60  /  cos 60 + cos 60
= 2sin60  /  2cos60
= sin60  / cos60
=tan60
= sqrt 3 

its correct 
mark the brainliest plzz!

Answer 2

Hey friend !! ,..,.....here's your answer
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sin70 + cos40 / cos70 + sin40
sin(90- 20) + cos40 / cos (90-20) + sin40

cos20 + cos 40 /