Enable contrast version

# Tutor profile: Amal R.

Amal R.
Masters in Machine design with thesis done in ISRO (Indian Space Research Organisation)

## Questions

### Subject:Trigonometry

TutorMe
Question:

Prove that $$\frac{tan A+ Sec A-1}{tan A-Sec A+1}$$=$$\frac{1+Sin A}{Cos A}$$

Amal R.

$$L.H.S$$ =$$\frac{tan A+ Sec A-1}{tan A-Sec A+1}$$ = $$\frac{tan A+ sec A-(sec^2A - tan^2 A)}{tan A-Sec A+1}$$ = $$\frac{(tan A +sec A) - ((sec A + tan A)(sec A - tan A)}{1-sec A+ tan A}$$ = $$\frac{(sec A+tan A)(1-sec A+tan A)}{1-sec A+tan A}$$ = $$sec A+tan A$$ =$$\frac{1}{cos A}$$+$$\frac{1+sin A}{cos A}$$ = $$RHS$$

### Subject:Basic Math

TutorMe
Question:

The sum of three times a number and 2 less than 4 times that same number is 47. Determine the value of that unknown number.

Amal R.

$$3n+(4n-2) = 47$$ $$7n-2 = 47$$ $$7n = 47+2=49$$ $$n = 49/7 =7$$

### Subject:Mechanical Engineering

TutorMe
Question:

Explain the following terms associated with a mechanism. (i) Limit Positions (ii) Dead Center

Amal R.

(i) It is the position of a mechanism when the interior angle between the crank and connecting rod is either 180 degree or 360 degrees. At these positions, large output torque can be generated by providing smaller input torque and hence the mechanical advantage tends to be infinity. (ii) It is the position of a mechanism when the interior angle between the connecting rod and follower is either 180 degree or 360 degrees.

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
BEST IN CLASS SINCE 2015
TutorMe homepage