Question

sin² A + cos²A =

pts for Harshali.......................

50 pts..​

Answer 1

Answer:

To prove:- Sin²A = 1-cos² A

In a right triangle

SinA = P/H

CosA = B/H

substituting the values

(P/H)² = 1- (B/H)²

P²/H² = 1- B²/H²

P²/H² = H² – B²/H². (Taking LCM)

According to P.G.T. H²= P²+ B²

∴H² – B² = P²

∴ P²/H² = P²/ H².

RHS= LSH ( Hence Proved)

Step-by-step explanation:

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Answer 2

Answer:

Proposed by Lord Lytton, then viceroy of India (governed 1876–80), the act was intended to prevent the vernacular press from expressing criticism of British policies—notably, the opposition that had grown with the outset of the Second Anglo-Afghan War (1878–80).