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If Sin77 =x, then the value …

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If Sin77 =x, then the value of Tan77 is

Posted by Pratima Gupta 5 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 11 months ago

cos²θ + sin² θ = 1

⇒ cos² 77° + sin² 77° = 1

⇒ cos ² 77° = 1 – sin² 77°

⇒ cos 77° = √(1 – sin² 77°)

And Given that sin 77° = x

⇒ cos 77° = √(1 – x² )

Tan77° = x/ √(1 – x² )

0Thank You

Prabhu Mehta 5 years, 11 months ago

X/cos

0Thank You

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CBSE > Class 10 > Mathematics