tan5°×tan30°×4tan85° = ?
Answers
Answered by
11
tan(90-85)*tan30*4*tan85
=cot85*tan30*4tan85
=cot85*tan30*4(1/cot85)
=4tan30
=cot85*tan30*4tan85
=cot85*tan30*4(1/cot85)
=4tan30
GunturiSankar:
Almost correct. 4/√3 is exact answer.
yaa that is the value of tan30
means tan30=1/root3
Yes
enjoy
Similar questions