tan 10. tan 20. tan 30. tan 70. tan 80
SEND HELP QUICK
I need this exact questions answer not a different one
Answers
Answered by
1
Answer:
1/(root3)
Step-by-step explanation:
tan10. tan20. tan30. tan70. tan80
= tan(90-80). tan(90-70). tan30. tan70. tan80
= cot80. cot70. tan30. tan70. tan80 {tan(90°-x) = cotx}
= cot80. tan80. cot70. tan70. tan30
= 1×1×tan30 { tanx • cotx = 1}
= tan30
= 1/(root3)
Answer provided by Gauthmath.
Similar questions