Evaluate sec 27 to four significant digits 7 Evaluate cot

Evaluate sec (27 °) to four significant digits. ________________

7. Evaluate cot (29.4 °) to four significant digits. ________________

8. Evaluate csc(152°) to four significant digits. ________________

9. Evaluate to three significant digits: tan 1 (1.678) = ___________________

10. Evaluate to three significant digits: sec 1 (1.898) = __

Solution

7. sec 27=1/cos 27= 1.122

8. cot 29.4=1/tan29.4=1.775

9. tan^-1(1.678)= 59.2 degree