Friday

September 19, 2014

September 19, 2014

Posted by **Haiano** on Sunday, June 1, 2014 at 7:18pm.

- Math -
**MathMate**, Sunday, June 1, 2014 at 8:34pmWork on the left-hand side first:

csc60 cot30 tan60

=(1/sin60)(tan60)(tan60)

=(1/sin60)(tan²60)

=(1/sin60)(sec²60-1)

=(2/√3)(2²-1)

=2√3

Work on the right-hand side:

2sec²45cos30

=2(2/√2)² (√3)/2

=8/2 (√3)/2

=2√3

Thus LHS=RHS and the proof is complete.

- Math -
**Steve**, Sunday, June 1, 2014 at 8:35pmcsc60° * cot 30° * tan 60°

= 2/√3 * √3 * √3

= 2√3

2sec^2 45° cos30°

= 2*2*√3/2

= 2√3

**Answer this Question**

**Related Questions**

Trigonometry - Please review and tell me if i did something wrong. Find the ...

math - find the exact value of [sec(-30 degrees)- cot 120 degrees]/1-cosec^2(45 ...

Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

math - Prove the following identities: a) (cosec θ + cotθ)(cosecθ...

Math - Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 ...

Maths - More than one question please help me - Hi everyone :) I need a lot of ...

pre calculus - Cot 495 degrees... a) -tan 135 degrees b) -cot 135 degrees c) cot...

Math - How do you express in terms of angles less than 90 degrees? sin 120 ...

GENRAL MATHS - PROVE THAT (1+COT A+TAN A)(SIN A-COS A)=SEC A\COSEC A-COSEC A\SEC...

Math - Determine each tangent ratio to four decimal places using a calculator. ...