Math, asked by tshivashankarreddy23, 9 months ago

1.
MATHEMATICS
Which of the following is correct?
1) sin 1° > sin 2) sin lº <sin!
3) sin lº = sin 1
4) sim 1° =
180
I sini
9. If x=rcos a cos B cos y,
y=rcos a cos ß siny:
:=rsin a cos B; p=rsin B then
x² + y² + ² + H²=
1) 2)2r 3)
10. If xcor120° +4 sin150° = 3, then x=
1) 2 27 36 4) 5
11. If x= sin 130° + cos 130° then
1) r<0 2) x=0 3) x>04) x20
12. If x= a sec" 0, y = b tan" e then
2.
cosec A = 4p+
16p
cosecA + cot A =
1)8p
2)
8p
3) -8p (or)
8p
4) 8p (or)
8p
3.
ir
09-79
10
2) - 1
3) 1
4)2
4.
1-sin A
= sec A-tan A then A lies in
1 + sin A
the quadrants
1) I, II 2) II, III 3)I, IV 4) I, III
cos? 5° + cos2 10°
+ cos215° +...+ cos360º =
1) 18 2) 27 3) 36 4) 45
cos'o sino coso sino
If
then
b
b
13. rcos 8+ sin8 = 1, sin e-cose = 1
then
a
5.
+
a
11 2) - 1 3)2 4)3
14. If sin x+cos ecx = 2 then sinx+cos ec x=
1)1 2)2 3) 3 4)4
1
1)
2)
a + b
(a+b)?
Зл
15. 4a sin?
– 3(atan 225°] + [2a cos315°) =
3)
b
4) a + b
2) a
1)
3) 2a 4) a
16. Sin 40° 35' cos 19°25 +cos 40°35 sin 19°25 =
6.
1) 1
2)
3)0
4)-1
7.
cos A+sin' A cos' A-sin' A
Ek then k=
cos A+sin A cos A-sin A
1) 0 2) 1 3)2 4)-1
If k=($x A+tan A)(& B+lanB (sC+tanC)=
(sec A-tan A)(sec B-tan B)(sec - tanC)
then k=
1) 0
3) +34) +4
If sintap) = 1, sin(a -
Athen
tan( a +25) tan(2a + b) =
2) - 1 3) 0 4)2
17. cos(n+1) acos(n-1)a+sin(n+1) asin(n-1)a=
1) cos 2na
2) sin 2na
3) cos 2a
4) sin 2a
2) 1
18. cos" 52. -sin 22
8.
√3-1
3+√3
3)
412
3-√3
2)
4)
412
412
413​

Answers

Answered by vidhaanp1106
1

Answer:

the correct statement is 412

Answered by manveerSingh423
2

Answer:

412 is the correct answer bro say thanks for the answer and follow me

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