Question

please Explain and solve​

Answer 1

Answer:

$5) \: 30degree$

$6) \: 5$

$7) \: 0$

$8) \: 0$

$9) \: 0$

$10) \: 90$

hope this will help you and marks it as brainlist plzzzzzzzzz

Answer 2

Answer:

Answers

1.sin 30 degree=1/2(x)

cos 60 degree=1/2(y)

x^2+y^2=(1/2)^2+(1/2)^2

=1/4+1/4

=2/4=1/2

correct option-(1)

2.we know

tan theta=cot (90-theta)

here,

(90 -theta)=37 degree

theta=90-37=53 degree

correct option-(2)

3.we know

tan theta=cot (90-theta)

here,

tan 18 degree=cot(90 - 18)degree=cot 72 degree

tan 72 degree*cot 72 degree

=tan 72 degree *1/tan 72 degree

=1

correct option-(2)

4.2tan30 degree=2/

1-tan30 degree ^2=2/3

2/ / 2/3=(tan 60 degree)

correct option-(3)

5.theta=30 degree

correct option-(2)

6.3*sin 70 degree sec20 degree +2sin 49 degree sec 51 degree=3+2=5

correct option-(3)

7.1-tan 45 degree ^2/1+tan 2=45 degree ^2=0/2=0

correct option-(3)

8.cosec(70+theta)-sec(20 -theta)+tan(65 +theta)-cot(25-theta)=0+0=0

correct option-(1)

9.answer will be 1 as tan 45 degree is 1

correct option-(2)

10.sinα=1/2

α=30 degree

cos β=1/2

β=60 degree

α+β=30 degree +60 degree

=90 degree

correct option-(2)

Step-by-step explanation: