Practice30Create account

In a shop in Lucknow, three friends compute trig values. They agree that simplifies to one ratio.
Which expression does it equal?

Class 10Trigonometric IdentitiesTrigonometry
  • A
  • B
  • C
  • Dtan A + cot A

Step-by-Step Solution

Replace -1 with -(se A - ta A) and factor: = sec A + tan A. This is a known identity.
Answer: A)

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Trigonometric Identities practice questions

More Class 10 Trigonometric Identities practice

If 5 tan A = 4, evaluate 5 A - 3 A/5 A + 2 A.A right triangle has base = 8 cm and height = 6 cm, with acute angle A at the base…A ladder problem reduces to: if cos A = m/n for an acute angle A, express tan A in terms…Reduce the quotient A + cosec A A + 1 to a single trigonometric ratio. Which ratio is it?A student hands in this four-step "proof" that sin A + cos A = 1: Step 1: ^2 A + ^2 A =…