Tan1 (x/y)  tan1 (x  y/x + y) is equal to:


1

202

April 12, 2019

X then x is equal to:


1

116

April 12, 2019

Sin (tan1 x), x < 1 is equal to:


1

251

April 12, 2019

Solve the equation: tan1(1  x/1 + x) = 1/2 tan1 x, (x >0)


1

146

April 12, 2019

Solve the equation: 2tan1(cos x) = tan1(2cosec x)


1

162

April 12, 2019

Prove that: 9π/8  9/4 sin1 1/3 = 9/4 sin1 2√2/3


1

341

April 12, 2019

Prove that: tan1 (√1 + x  √1  x/√1 + x + √1  x) = π/4  1/2cos1 x, 1/√2 ≤ x ≤ 1


1

149

April 12, 2019

Prove that: cot1 (√1 + sin x + √1  sin x /√1 + sin x  √ 1  sin x ) = x/2, x ∈ (0, π/4)


1

306

April 12, 2019

Prove that: tan1 √x = 1/2cos1(1  x /1 + x), x ∈ [0,1]


1

139

April 12, 2019

Prove that: tan1 1/5 + tan1 1/7 + tan1 1/3 + tan1 1/8 = π/4


1

227

April 12, 2019

Prove that: tan1 63/16 = sin1 5/13 + cos1 3/5


1

328

April 12, 2019

Prove that: cos1 12/13 + sin1 3/5 = sin1 56/65


1

540

April 12, 2019

Prove that: cos1 4/5 + cos1 12/12 = cos1 33/65


1

248

April 12, 2019

Prove that: sin1 8/17 + sin1 3/5 = tan 1 77/36


1

394

April 12, 2019

Prove that: 2sin1 3/5 = tan1 24/7


1

573

April 12, 2019

Find the value of tan1(tan7π/6)


1

290

April 12, 2019

Find the value of cos1(cos 13π/6)


1

204

April 12, 2019

Sin[π/3  sin1 (1/2) ] is equal to:


1

135

April 12, 2019

Cos1 (cos7π/6) is equal to:


1

243

April 12, 2019

Find the values of tan(sin1 3/5 + cot1 3/2)


1

220

April 12, 2019

Find the values of each of the expressions tan1(tan 3π/4)


1

176

April 12, 2019

Find the values of the expressions sin1(sin 2π/3)


1

314

April 12, 2019

If tan1 x  1/x  2 + tan1 x + 1 / x + 2 = π/4, then find the value of x


1

205

April 12, 2019

If sin( sin1 1/5 + cos1 x) = 1 , then find the value of x


1

318

April 12, 2019

Find the values of tan1/2[sin1 2x/1+x2 + cos1 1y2/1+y2], x < 1, y > 0 and xy < 1


1

213

April 12, 2019

Find the values of cot(tan1 a = cot1 a)


1

176

April 12, 2019

Find the values of each of the following: tan1[2cos(2sin1 1/2)]


1

211

April 12, 2019

Tan1(3a2x  x3/a3  3ax2), a > 0; a/√3 ≤ x ≤ a/√3


1

326

April 12, 2019

Write the function in the simplest form: tan1 (cos x  sin x /cos x + sin x ), 0 < x < π


1

649

April 12, 2019

Tan1 1/x2  1, x > 1


1

83

April 12, 2019
