Question

Please help in this question

Answer 1

heyy !!
your answer⬇⬇

3)origin=(0,0)
now , distance=√(x^2+y^2)

4)d=-4
a7=4
a+(7-1)×-4=4
a=28

5)(cos^2 67°-sin^2 23°)
=cos^2(90°-23°)-sin^2 23°
=sin^2 23°-sin^2 23°=>0

hope it help. :)

Answer 2

3-

By Distance Formula,

$d = \sqrt{(x-0)^{2}+ (y-0)^{2} }$

d =$\sqrt{ x^{2} + y^{2} }$


distance = $\sqrt{ x^{2} + y^{2} }$


4)-

$a_{7} = a + 6d$


4 = a + [6*(-4)]

4 =a + [-24]

4 = a- 24

4+24= a

28  = a

first term is a i.e. 28


5)-

[tex]cos^{2} 67 - sin^{2} 23 [/tex]

$cos^{2} 67 - sin^{2} (90-67)$

[tex]cos^{2} 67 - cos^{2} 67 [/tex]

= 0




i hope this will help you



-by ABHAY