sin 18°/
cos 72°
+root 3 (tan 10°tan 30° tan40° tan 5o° tan 80°)= 2.
Answers
Answered by
5
Answer:
see the attachment provided
Step-by-step explanation:
here we use the formulae
_________________
sin(90- theta)= cos theta
cot(90- theta)= tan theta
tan theta× cot theta =1
so
sin18= cos 72
tan 10=cot 80
from here refer above
Attachments:
Answered by
1
Answer:
Step-by-step explanation:
sin18/cos72=sin18/( 90-72)=1
√3(tan10*cot(90-80)tan40*cot(90-50)tan30=√3*=1
..1+1=2
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