Question
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
More Trigonometry Questions
- What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?
- Find the value of (1 - sin2q) X (secq + tanq) X (secq - tanq) X cosec2q
- cosx/(1 – sinx) + cosx/(1+ sinx) = 4, 0 o < x < 90 o , then the value of (tanx + cosecx)
- If sec A + tan A = 4 and sec A - tan A = (1/4), find the value of cos A.
- If cos 2A = 1, then find cos A
- If (5sinx - cosx) = 2√2sinx, then find the value of 'tanx'
- If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
- If 9sin²x + 5cos²x − 7 = 0, then find the value of sinx, given that 0° < x < 90°.
- If (tan 5y · tan y = 1), then find the value of (tan 6y).
- If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)