P3 DIFFERENTIATION D1-D2-D3 | A LEVELS 9709 | COMPLETE WORKSHEETS PART-3

[@DISAPPEARED-TO10D]

Starts at 5:53

[@lovaizazahid16]

At 31:46 how do we know sin(3π/4) is 1/√2 ? From the calculator? The calculator doesn't give this anwer too as its not rationalized. And why should answer of cos(3π/4) be negative while the answer of sin should be positive? Pls explain sir im very confused about this part 😩

[@a_str1d]

calculator does give these answers. try using a different calculator.

[@ahsansaleem2752]

Sir please start o level Urdu syllabus b

[@AyeshaAshfaq7]

sir sint/cost = -1 kesay agay like -1 kesay aya ye samajh ni a raha

[@englishbolchaal]

sint = -cost -cost= -1 into cost divide cost on the other side of equation sint/cost =-1

[@rahimali4191]

sir dffrent type mil kr ati he?

[@ZAINEMATICS]

what do you mean?

[@MuhammadTahalol]

@@ZAINEMATICS he might be asking whether d1, d2 and d3 type questions appear in the exam as a single question or otherwise.

[@muskanmgn25]

Sir Calc I mei meri iss topic mei Lag gayi 😭

[@krhunter7003]

sir ab 50 bhi nai aik din hai 🙃

[@ZAINEMATICS]

oho