Express the given angles into radian. (a) 1^(@) (b) 12 sec.

1.	Express the given angles into radian. (a) 1^(@) (b) 12 sec.
Answer» Solution :(a) We know, `(2pi) "rad" = 360^(@)` `1^(@)=((PI)/(180))"rad"` `IMPLIES 1^(@)=1.74xx10^(-2)"rad"` (b) `1^(@)= 60.= 3600..` `implies 1..= (1^@)/(3600)` `implies 12..=12xx((1)/(3600))^(@)` `implies 12.. = 12xx(1)/(3600)xx1.74xx10^(-2)"rad"` `cong 5.8xx10^(-5)"rad"`.

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