Question

सब्जेक्ट मैथ क्लास सेवंथ प्लेइंग द ब्लैंक्स द सम ऑफ ऑल एंगल्स ऑफ क्वाड्रीलेटरल इज​

Answer 1

Answer:

option is

B

2x

x

2

+1

We have,

secθ+tanθ=x ……. (1)

(secθ−tanθ)

(secθ+tanθ)(secθ−tanθ)

=x

(secθ−tanθ)

(sec

2

θ−tan

2

θ)

=x

We know that

sec

2

θ−tan

2

θ=1

Therefore,

(secθ−tanθ)

1

=x

secθ−tanθ=

x

1

……. (2)

On adding the equation (1) and (2), we get

2secθ=x+

x

1

2secθ=

x

x

2

+1

secθ=

2x

x

2

+1

Answer 2

360 degree

Verification:
Sum of all the angles of square=90+90+90+90=360 degree



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