The value of cos229o + cos261o is: Optionsa) b) 2c) 0d) 1 Solution As per questioncos229 + cos261ocos229 + (cos 61o)2cos229 + (cos (90 – 29)o)2cos229 + (Sin 29)2 Formula :- = cos (90 – cos229 + sin229 = 1Formula :- = 1 Ans is ) 1
The value of cos2 29o + cos2 61o is: Read More »
Simplify Options a) x – 9b) x + 3c) x – 3d) Solution As per question Ans is ) x – 3
Simplify (x2 – 9)/x+3 Read More »
What is the value of sec (t), if tan (t) = ? Optionsa) b) c) d) Solution As per question tan Q = (AB)2 = (AC)2 + (BC)2(AB)2 = (3)2 + (1)2(AB)2 = 9 + 1 = 10AB = sec (t) = Ans is )
What is the value of sec (t), if tan (t) = 1/3 ? Read More »
The value of sin2 30 – sin2 40 + sin2 45 – sin2 55 – sin2 35 + sin2 45 – sin2 50 + sin2 60 is: Optionsa) 4b) 0c) 1d) 2 Solution As per question sin2 30 – sin2 40 + sin2 45 – sin2 55 – sin2 35 + sin2 45 – sin2
Simplify . Optionsa) x2 + 5x + 25b) x2 – 25c) x2 + 10x + 25d) x2 + 25 Solution As per question (x + 5)2 = x2 + 10x + 25 Ans is ) x2 + 10x + 25
Simplify x3 + 15×2 + 75x + 125/x2 – 25 (x – 5). Read More »
If , then evaluate (. Optionsa) b) c) d) Solution As per questionFormula :- ((Given = Ans is )
If cosec theta = 5/3 , then evaluate (sec2 theta – 1) x cot2 theta x (1 + cot2 theta). Read More »
A woman spends 2/3 of her income. If her income increases by 18% and the expenditure increases by 24% then the percentage increase in her savings will be: Optionsa) 3%b) 6%c) 4%d) 5% Solution Let the Income = xExpenditure = Saving = Income increases 18% = Expenditure increases 24% = Expenditure increases 24% = New
Naman bought few apples for Rs.720 from a shop. He negotiated the price and the shopkeeper reduced it by Rs.2 per apple. Due to this Naman could buy four more apples than what he had bought earlier. How many apples did he originally buy? Optionsa) 36b) 44c) 40d) 48 Solution Let of Apple = xNo.
A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km/h and 11 km/h, respectively. What is the distance (in metres) between them after 9 minutes? Optionsa) 50b) 40c) 60d) 30 Solution
S borrowed some amount from R and promised to pay him 8% interest. Then S invested the borrowed amount in a scheme, upon which he earned a profit of 5% after paying R, the principal amount with interest. How much percentage R would have gained, if he would have invested in the scheme directly? Optionsa)