Q43 of 76 Page 52

The value of sin (45° + θ) – cos (45°–θ) is

We have, sin (45° + θ) – cos (45°–θ)


= sin (45° + θ) - sin (90° -(45° - θ))


= sin (45° + θ) - sin (45° + θ)


= 0.

More from this chapter

All 76 →
41

The minimum value of 3 cos x + 4 sin x + 8 is

 42

The value of tan 3A – tan 2A –tan A is equal to

 44

The value of is

 45

cos 2θ cos 2ϕ + sin2(θ–ϕ) – sin2(θ + ϕ) is equal to